diff --git a/NEWS.md b/NEWS.md
index d91c8f2a..c598d9da 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,6 @@
+Version 0.6.8
+ - enhancement: add link to cppreference in the help menu
+
 Version 0.6.7
  - fix: messages send to the gdb process's standard error are not received
  - adjust: the max value of the debug console's vertical scrollbar.
diff --git a/RedPandaIDE/RedPandaIDE_zh_CN.qm b/RedPandaIDE/RedPandaIDE_zh_CN.qm
index c156fffc..4f3ba61d 100644
Binary files a/RedPandaIDE/RedPandaIDE_zh_CN.qm and b/RedPandaIDE/RedPandaIDE_zh_CN.qm differ
diff --git a/RedPandaIDE/RedPandaIDE_zh_CN.ts b/RedPandaIDE/RedPandaIDE_zh_CN.ts
index 1ef27b88..f3a4fadb 100644
--- a/RedPandaIDE/RedPandaIDE_zh_CN.ts
+++ b/RedPandaIDE/RedPandaIDE_zh_CN.ts
@@ -2696,29 +2696,29 @@ Are you really want to continue?</source>
         <translation>编译日志</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="845"/>
+        <location filename="mainwindow.ui" line="851"/>
         <source>File</source>
         <translation>文件</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="863"/>
+        <location filename="mainwindow.ui" line="869"/>
         <source>Tools</source>
         <translation>工具</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1178"/>
-        <location filename="mainwindow.ui" line="1181"/>
+        <location filename="mainwindow.ui" line="1185"/>
+        <location filename="mainwindow.ui" line="1188"/>
         <source>Run</source>
         <translation>运行</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="888"/>
+        <location filename="mainwindow.ui" line="894"/>
         <source>Edit</source>
         <translation>编辑</translation>
     </message>
     <message>
         <location filename="mainwindow.ui" line="95"/>
-        <location filename="mainwindow.ui" line="940"/>
+        <location filename="mainwindow.ui" line="946"/>
         <source>Project</source>
         <translation>项目</translation>
     </message>
@@ -2742,81 +2742,81 @@ Are you really want to continue?</source>
     </message>
     <message>
         <location filename="mainwindow.ui" line="387"/>
-        <location filename="mainwindow.ui" line="1038"/>
-        <location filename="mainwindow.ui" line="1383"/>
-        <location filename="mainwindow.ui" line="1386"/>
+        <location filename="mainwindow.ui" line="1045"/>
+        <location filename="mainwindow.ui" line="1390"/>
+        <location filename="mainwindow.ui" line="1393"/>
         <source>Debug</source>
         <translation>调试</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="430"/>
+        <location filename="mainwindow.ui" line="436"/>
         <source>Evaluate:</source>
         <translation>求值</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="471"/>
+        <location filename="mainwindow.ui" line="477"/>
         <source>Debug Console</source>
         <translation>调试主控台</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="500"/>
+        <location filename="mainwindow.ui" line="506"/>
         <source>Call Stack</source>
         <translation>调用栈</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="535"/>
+        <location filename="mainwindow.ui" line="541"/>
         <source>Breakpoints</source>
         <translation>断点</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="570"/>
+        <location filename="mainwindow.ui" line="576"/>
         <source>Locals</source>
         <translation>本地变量</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="649"/>
-        <location filename="mainwindow.ui" line="908"/>
+        <location filename="mainwindow.ui" line="655"/>
+        <location filename="mainwindow.ui" line="914"/>
         <source>Search</source>
         <translation>查找</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="676"/>
+        <location filename="mainwindow.ui" line="682"/>
         <source>History:</source>
         <translation>历史：</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="711"/>
+        <location filename="mainwindow.ui" line="717"/>
         <source>Search Again</source>
         <translation>重新查找</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="749"/>
+        <location filename="mainwindow.ui" line="755"/>
         <source>Replace with:</source>
         <translation>替换为：</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="775"/>
+        <location filename="mainwindow.ui" line="781"/>
         <source>Replace</source>
         <translation>替换</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1583"/>
+        <location filename="mainwindow.ui" line="1590"/>
         <source>Close</source>
         <translation>关闭</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="869"/>
+        <location filename="mainwindow.ui" line="875"/>
         <source>Execute</source>
         <translation>运行</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="919"/>
-        <location filename="mainwindow.ui" line="1002"/>
+        <location filename="mainwindow.ui" line="925"/>
+        <location filename="mainwindow.ui" line="1009"/>
         <source>Code</source>
         <translation>代码</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="930"/>
+        <location filename="mainwindow.ui" line="936"/>
         <source>Window</source>
         <translation>窗口</translation>
     </message>
@@ -2834,59 +2834,59 @@ Are you really want to continue?</source>
         <translation>新建</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1091"/>
+        <location filename="mainwindow.ui" line="1098"/>
         <source>Ctrl+N</source>
         <translation>Ctrl+N</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1101"/>
+        <location filename="mainwindow.ui" line="1108"/>
         <source>Open...</source>
         <translation>打开...</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1104"/>
+        <location filename="mainwindow.ui" line="1111"/>
         <source>Ctrl+O</source>
         <translation>Ctrl+O</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1114"/>
+        <location filename="mainwindow.ui" line="1121"/>
         <source>Save</source>
         <translation>保存</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1117"/>
+        <location filename="mainwindow.ui" line="1124"/>
         <source>Ctrl+S</source>
         <translation>Ctrl+S</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1127"/>
+        <location filename="mainwindow.ui" line="1134"/>
         <source>Save As...</source>
         <translation>另存为...</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1130"/>
+        <location filename="mainwindow.ui" line="1137"/>
         <source>Save As</source>
         <translation>另存为</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1140"/>
+        <location filename="mainwindow.ui" line="1147"/>
         <source>Save All</source>
         <translation>全部保存</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1143"/>
+        <location filename="mainwindow.ui" line="1150"/>
         <source>Ctrl+Shift+S</source>
         <translation>Ctrl+Shift+S</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1152"/>
+        <location filename="mainwindow.ui" line="1159"/>
         <source>Options</source>
         <translation>选项</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1017"/>
-        <location filename="mainwindow.ui" line="1162"/>
-        <location filename="mainwindow.ui" line="1165"/>
+        <location filename="mainwindow.ui" line="1024"/>
+        <location filename="mainwindow.ui" line="1169"/>
+        <location filename="mainwindow.ui" line="1172"/>
         <location filename="mainwindow.cpp" line="1174"/>
         <location filename="mainwindow.cpp" line="1185"/>
         <location filename="mainwindow.cpp" line="2483"/>
@@ -2895,587 +2895,592 @@ Are you really want to continue?</source>
         <translation>编译</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1168"/>
+        <location filename="mainwindow.ui" line="1175"/>
         <source>F9</source>
         <translation>F9</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1184"/>
+        <location filename="mainwindow.ui" line="1191"/>
         <source>F10</source>
         <translation>F10</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1194"/>
+        <location filename="mainwindow.ui" line="1201"/>
         <source>Undo</source>
         <translation>恢复</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1197"/>
+        <location filename="mainwindow.ui" line="1204"/>
         <source>Ctrl+Z</source>
         <translation>Ctrl+Z</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1207"/>
+        <location filename="mainwindow.ui" line="1214"/>
         <source>Redo</source>
         <translation>重做</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1210"/>
+        <location filename="mainwindow.ui" line="1217"/>
         <source>Ctrl+Y</source>
         <translation>Ctrl+Y</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1220"/>
+        <location filename="mainwindow.ui" line="1227"/>
         <source>Cut</source>
         <translation>剪切</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1223"/>
+        <location filename="mainwindow.ui" line="1230"/>
         <source>Ctrl+X</source>
         <translation>Ctrl+X</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1233"/>
+        <location filename="mainwindow.ui" line="1240"/>
         <location filename="mainwindow.cpp" line="1622"/>
         <location filename="mainwindow.cpp" line="1672"/>
         <source>Copy</source>
         <translation>复制</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1236"/>
+        <location filename="mainwindow.ui" line="1243"/>
         <source>Ctrl+C</source>
         <translation>Ctrl+C</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1246"/>
+        <location filename="mainwindow.ui" line="1253"/>
         <location filename="mainwindow.cpp" line="1630"/>
         <source>Paste</source>
         <translation>粘贴</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1249"/>
+        <location filename="mainwindow.ui" line="1256"/>
         <source>Ctrl+V</source>
         <translation>Ctrl+V</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1254"/>
+        <location filename="mainwindow.ui" line="1261"/>
         <location filename="mainwindow.cpp" line="1638"/>
         <source>Select All</source>
         <translation>选择全部</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1257"/>
+        <location filename="mainwindow.ui" line="1264"/>
         <source>Ctrl+A</source>
         <translation>Ctrl+A</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1267"/>
+        <location filename="mainwindow.ui" line="1274"/>
         <source>Indent</source>
         <translation>缩进</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1280"/>
+        <location filename="mainwindow.ui" line="1287"/>
         <source>UnIndent</source>
         <translation>取消缩进</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1288"/>
+        <location filename="mainwindow.ui" line="1295"/>
         <source>Toggle Comment</source>
         <translation>切换注释</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1291"/>
+        <location filename="mainwindow.ui" line="1298"/>
         <source>Ctrl+/</source>
         <translation>Ctrl+/</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1299"/>
+        <location filename="mainwindow.ui" line="1306"/>
         <source>Collapse All</source>
         <translation>全部收起</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1304"/>
+        <location filename="mainwindow.ui" line="1311"/>
         <source>Uncollapse All</source>
         <translation>全部展开</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1309"/>
+        <location filename="mainwindow.ui" line="1316"/>
         <source>Encode in ANSI</source>
         <translation>使用ANSI编码</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1314"/>
+        <location filename="mainwindow.ui" line="1321"/>
         <source>Encode in UTF-8</source>
         <translation>使用UTF-8编码</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1319"/>
+        <location filename="mainwindow.ui" line="1326"/>
         <source>Auto Detect</source>
         <translation>自动检测</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1324"/>
+        <location filename="mainwindow.ui" line="1331"/>
         <source>Convert to ANSI</source>
         <translation>转换为ANSI编码</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1329"/>
+        <location filename="mainwindow.ui" line="1336"/>
         <source>Convert to UTF-8</source>
         <translation>转换为UTF-8编码</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1339"/>
-        <location filename="mainwindow.ui" line="1342"/>
+        <location filename="mainwindow.ui" line="1346"/>
+        <location filename="mainwindow.ui" line="1349"/>
         <source>Compile &amp; Run</source>
         <translation>编译运行</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1345"/>
+        <location filename="mainwindow.ui" line="1352"/>
         <source>F11</source>
         <translation>F11</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1355"/>
-        <location filename="mainwindow.ui" line="1358"/>
+        <location filename="mainwindow.ui" line="1362"/>
+        <location filename="mainwindow.ui" line="1365"/>
         <source>Rebuild All</source>
         <translation>全部重编译</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1361"/>
+        <location filename="mainwindow.ui" line="1368"/>
         <source>F12</source>
         <translation>F12</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1371"/>
+        <location filename="mainwindow.ui" line="1378"/>
         <source>Stop Execution</source>
         <translation>停止执行</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1374"/>
+        <location filename="mainwindow.ui" line="1381"/>
         <source>F6</source>
         <translation>F6</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1389"/>
+        <location filename="mainwindow.ui" line="1396"/>
         <source>F5</source>
         <translation>F5</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1399"/>
+        <location filename="mainwindow.ui" line="1406"/>
         <source>Step Over</source>
         <translation>单步跳过</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1415"/>
+        <location filename="mainwindow.ui" line="1422"/>
         <source>F7</source>
         <translation>F7</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1412"/>
+        <location filename="mainwindow.ui" line="1419"/>
         <source>Step Into</source>
         <translation>单步进入</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="599"/>
+        <location filename="mainwindow.ui" line="605"/>
         <source>Memory</source>
         <translation>内存</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="605"/>
+        <location filename="mainwindow.ui" line="611"/>
         <source>Address Expression:</source>
         <oldsource>Address:</oldsource>
         <translation>地址表达式：</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="782"/>
+        <location filename="mainwindow.ui" line="788"/>
         <source>Cancel</source>
         <translation>取消</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="817"/>
+        <location filename="mainwindow.ui" line="823"/>
         <source>TODO</source>
         <translation>TODO</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="957"/>
+        <location filename="mainwindow.ui" line="963"/>
         <source>Help</source>
         <translation>帮助</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="963"/>
+        <location filename="mainwindow.ui" line="970"/>
         <source>Refactor</source>
         <translation>重构</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="981"/>
+        <location filename="mainwindow.ui" line="988"/>
         <source>Main</source>
         <translation>主工具栏</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1063"/>
+        <location filename="mainwindow.ui" line="1070"/>
         <source>Compiler Set</source>
         <translation>编译器配置集</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1085"/>
-        <location filename="mainwindow.ui" line="1088"/>
+        <location filename="mainwindow.ui" line="1092"/>
+        <location filename="mainwindow.ui" line="1095"/>
         <source>New Source File</source>
         <translation>新建源代码文件</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1270"/>
+        <location filename="mainwindow.ui" line="1277"/>
         <source>Tab</source>
         <translation>Tab</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1283"/>
+        <location filename="mainwindow.ui" line="1290"/>
         <source>Shift+Tab</source>
         <translation>Shift+Tab</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1402"/>
+        <location filename="mainwindow.ui" line="1409"/>
         <source>F8</source>
         <translation>F8</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1425"/>
+        <location filename="mainwindow.ui" line="1432"/>
         <source>Step Out</source>
         <translation>单步跳出</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1428"/>
+        <location filename="mainwindow.ui" line="1435"/>
         <source>Ctrl+F8</source>
         <translation>Ctrl+F8</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1433"/>
+        <location filename="mainwindow.ui" line="1440"/>
         <source>Run To Cursor</source>
         <translation>执行到光标处</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1436"/>
+        <location filename="mainwindow.ui" line="1443"/>
         <source>Ctrl+F5</source>
         <translation>Ctrl+F5</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1446"/>
+        <location filename="mainwindow.ui" line="1453"/>
         <source>Continue</source>
         <translation>继续执行</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1449"/>
+        <location filename="mainwindow.ui" line="1456"/>
         <source>F4</source>
         <translation>F4</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1459"/>
+        <location filename="mainwindow.ui" line="1466"/>
         <source>Add Watch...</source>
         <translation>添加监视</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1464"/>
+        <location filename="mainwindow.ui" line="1471"/>
         <source>View CPU Window...</source>
         <translation>打开CPU信息窗口...</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1469"/>
+        <location filename="mainwindow.ui" line="1476"/>
         <source>Exit</source>
         <translation>退出</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1479"/>
+        <location filename="mainwindow.ui" line="1486"/>
         <source>Find...</source>
         <translation>查找...</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1482"/>
+        <location filename="mainwindow.ui" line="1489"/>
         <source>Ctrl+F</source>
         <translation>Ctrl+F</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1487"/>
+        <location filename="mainwindow.ui" line="1494"/>
         <source>Find in Files...</source>
         <translation>在文件中查找...</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1490"/>
+        <location filename="mainwindow.ui" line="1497"/>
         <source>Ctrl+Shift+F</source>
         <translation>Ctrl+Shift+F</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1500"/>
+        <location filename="mainwindow.ui" line="1507"/>
         <source>Replace...</source>
         <translation>替换</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1503"/>
+        <location filename="mainwindow.ui" line="1510"/>
         <source>Ctrl+R</source>
         <translation>Ctrl+R</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1508"/>
+        <location filename="mainwindow.ui" line="1515"/>
         <source>Find Next</source>
         <translation>查找下一个</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1511"/>
+        <location filename="mainwindow.ui" line="1518"/>
         <source>F3</source>
         <translation>F3</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1516"/>
+        <location filename="mainwindow.ui" line="1523"/>
         <source>Find Previous</source>
         <translation>查找前一个</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1519"/>
+        <location filename="mainwindow.ui" line="1526"/>
         <source>Shift+F3</source>
         <translation>Shift+F3</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1524"/>
+        <location filename="mainwindow.ui" line="1531"/>
         <source>Remove Watch</source>
         <translation>删除监视</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1529"/>
+        <location filename="mainwindow.ui" line="1536"/>
         <source>Remove All</source>
         <translation>清除全部监视</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1534"/>
+        <location filename="mainwindow.ui" line="1541"/>
         <source>Modify Watch...</source>
         <translation>修改监视值</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1544"/>
+        <location filename="mainwindow.ui" line="1551"/>
         <source>Reformat Code</source>
         <translation>对代码重新排版</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1547"/>
+        <location filename="mainwindow.ui" line="1554"/>
         <source>Ctrl+Shift+A</source>
         <translation>Ctrl+Shift+A</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1557"/>
+        <location filename="mainwindow.ui" line="1564"/>
         <source>Go back</source>
         <translation>前一次编辑位置</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1560"/>
+        <location filename="mainwindow.ui" line="1567"/>
         <source>Ctrl+Alt+Left</source>
         <translation>Ctrl+Alt+Left</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1570"/>
+        <location filename="mainwindow.ui" line="1577"/>
         <source>Forward</source>
         <translation>后一次编辑位置</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1573"/>
+        <location filename="mainwindow.ui" line="1580"/>
         <source>Ctrl+Alt+Right</source>
         <translation>Ctrl+Alt+Right</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1586"/>
+        <location filename="mainwindow.ui" line="1593"/>
         <source>Ctrl+W</source>
         <translation>Ctrl+W</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1596"/>
+        <location filename="mainwindow.ui" line="1603"/>
         <source>Close All</source>
         <translation>全部关闭</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1599"/>
+        <location filename="mainwindow.ui" line="1606"/>
         <source>Ctrl+Shift+W</source>
         <translation>Ctrl+Shift+W</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1609"/>
+        <location filename="mainwindow.ui" line="1616"/>
         <source>Maximize Editor</source>
         <translation>最大化编辑器</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1612"/>
+        <location filename="mainwindow.ui" line="1619"/>
         <source>Ctrl+F11</source>
         <translation>Ctrl+F11</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1622"/>
+        <location filename="mainwindow.ui" line="1629"/>
         <source>Next</source>
         <translation>下一窗口</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1625"/>
+        <location filename="mainwindow.ui" line="1632"/>
         <source>Ctrl+Tab</source>
         <translation>Ctrl+Tab</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1635"/>
+        <location filename="mainwindow.ui" line="1642"/>
         <source>Previous</source>
         <translation>前一窗口</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1638"/>
+        <location filename="mainwindow.ui" line="1645"/>
         <source>Ctrl+Shift+Tab</source>
         <translation>Ctrl+Shift+Tab</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1648"/>
+        <location filename="mainwindow.ui" line="1655"/>
         <source>Toggle breakpoint</source>
         <translation>切换断点</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1651"/>
+        <location filename="mainwindow.ui" line="1658"/>
         <source>Ctrl+F4</source>
         <translation>Ctrl+F4</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1656"/>
+        <location filename="mainwindow.ui" line="1663"/>
         <location filename="mainwindow.cpp" line="3601"/>
         <source>Clear all breakpoints</source>
         <translation>删除所有断点</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1661"/>
+        <location filename="mainwindow.ui" line="1668"/>
         <source>Breakpoint property...</source>
         <translation>设置断点条件...</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1666"/>
+        <location filename="mainwindow.ui" line="1673"/>
         <source>Goto Declaration</source>
         <translation>跳转到声明处</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1671"/>
+        <location filename="mainwindow.ui" line="1678"/>
         <source>Goto Definition</source>
         <translation>跳转到定义处</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1676"/>
+        <location filename="mainwindow.ui" line="1683"/>
         <source>Find references</source>
         <translation>查找符号的引用</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1686"/>
+        <location filename="mainwindow.ui" line="1693"/>
         <source>Open containing folder</source>
         <translation>打开所在的文件夹</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1689"/>
+        <location filename="mainwindow.ui" line="1696"/>
         <source>Ctrl+B</source>
         <translation>Ctrl+B</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1699"/>
+        <location filename="mainwindow.ui" line="1706"/>
         <source>Open a terminal here</source>
         <translation>打开命令行窗口</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1704"/>
+        <location filename="mainwindow.ui" line="1711"/>
         <source>File Properties...</source>
         <translation>文件属性...</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1714"/>
+        <location filename="mainwindow.ui" line="1721"/>
         <source>Close Project</source>
         <translation>关闭项目</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1724"/>
+        <location filename="mainwindow.ui" line="1731"/>
         <source>Project options</source>
         <translation>项目属性</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1734"/>
+        <location filename="mainwindow.ui" line="1741"/>
         <source>New Project...</source>
         <translation>新建项目...</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1743"/>
+        <location filename="mainwindow.ui" line="1750"/>
         <source>New File</source>
         <translation>新建项目文件</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1752"/>
+        <location filename="mainwindow.ui" line="1759"/>
         <source>Add to project...</source>
         <translation>添加到项目...</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1761"/>
+        <location filename="mainwindow.ui" line="1768"/>
         <source>Remove from project</source>
         <translation>从项目删除</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1766"/>
+        <location filename="mainwindow.ui" line="1773"/>
         <source>View Makefile</source>
         <translation>查看Makefile</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1775"/>
+        <location filename="mainwindow.ui" line="1782"/>
         <source>Clean</source>
         <translation>清理构建文件</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1784"/>
+        <location filename="mainwindow.ui" line="1791"/>
         <source>Open Folder in Explorer</source>
         <translation>在浏览器中打开</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1793"/>
+        <location filename="mainwindow.ui" line="1800"/>
         <source>Open In Terminal</source>
         <translation>在终端中打开</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1802"/>
+        <location filename="mainwindow.ui" line="1809"/>
         <source>About</source>
         <translation>关于</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1807"/>
+        <location filename="mainwindow.ui" line="1814"/>
         <location filename="mainwindow.cpp" line="4115"/>
         <source>Rename Symbol</source>
         <translation>重命名符号</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1810"/>
+        <location filename="mainwindow.ui" line="1817"/>
         <source>Shift+F6</source>
         <translation>Shift+F6</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1819"/>
+        <location filename="mainwindow.ui" line="1826"/>
         <source>Print...</source>
         <translation>打印...</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1822"/>
+        <location filename="mainwindow.ui" line="1829"/>
         <source>Ctrl+P</source>
         <translation>Ctrl+P</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1827"/>
+        <location filename="mainwindow.ui" line="1834"/>
         <location filename="mainwindow.cpp" line="4219"/>
         <source>Export As RTF</source>
         <translation>导出为RTF</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1832"/>
+        <location filename="mainwindow.ui" line="1839"/>
         <location filename="mainwindow.cpp" line="4241"/>
         <source>Export As HTML</source>
         <translation>导出为HTML</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1837"/>
+        <location filename="mainwindow.ui" line="1844"/>
         <source>Move To Other View</source>
         <translation>移动到其他视图</translation>
     </message>
     <message>
-        <location filename="mainwindow.ui" line="1840"/>
+        <location filename="mainwindow.ui" line="1847"/>
         <source>Ctrl+M</source>
         <translation>Ctrl+M</translation>
     </message>
+    <message>
+        <location filename="mainwindow.ui" line="1852"/>
+        <source>C/C++ Reference</source>
+        <translation type="unfinished">C/C++参考</translation>
+    </message>
     <message>
         <location filename="mainwindow.cpp" line="1977"/>
         <source>File Encoding</source>
@@ -3522,8 +3527,8 @@ Are you really want to continue?</source>
     </message>
     <message>
         <location filename="mainwindow.cpp" line="688"/>
-        <source>Line: %1 Col: %2 Selected: %3 Lines: %4 Length: %5</source>
-        <oldsource>Line:%1 Col:%2 Selected:%3 Lines:%4 Length:%5</oldsource>
+        <source>Line:%1 Col:%2 Selected:%3 Lines:%4 Length:%5</source>
+        <oldsource>Line: %1 Col: %2 Selected: %3 Lines: %4 Length: %5</oldsource>
         <translation type="unfinished">行: %1 列: %2 已选择 :%3 总行数: %4 总长度: %5</translation>
     </message>
     <message>
diff --git a/RedPandaIDE/mainwindow.cpp b/RedPandaIDE/mainwindow.cpp
index bb0e2abf..e5947d35 100644
--- a/RedPandaIDE/mainwindow.cpp
+++ b/RedPandaIDE/mainwindow.cpp
@@ -4262,3 +4262,18 @@ void MainWindow::on_actionMove_To_Other_View_triggered()
     }
 }
 
+
+void MainWindow::on_actionC_C_Reference_triggered()
+{
+    if (pSettings->environment().language()=="zh_CN") {
+        QFileInfo fileInfo(includeTrailingPathDelimiter(pSettings->dirs().app())+"cppreference-zh.chm");
+        if (fileInfo.exists()) {
+            QDesktopServices::openUrl(QUrl::fromLocalFile(fileInfo.absoluteFilePath()));
+        } else {
+            QDesktopServices::openUrl(QUrl("https://zh.cppreference.com/w/cpp"));
+        }
+    } else {
+        QDesktopServices::openUrl(QUrl("https://en.cppreference.com/w/cpp"));
+    }
+}
+
diff --git a/RedPandaIDE/mainwindow.h b/RedPandaIDE/mainwindow.h
index 872b7c6a..ae78fe6f 100644
--- a/RedPandaIDE/mainwindow.h
+++ b/RedPandaIDE/mainwindow.h
@@ -403,6 +403,8 @@ private slots:
 
     void on_actionMove_To_Other_View_triggered();
 
+    void on_actionC_C_Reference_triggered();
+
 private:
     Ui::MainWindow *ui;
     EditorList *mEditorList;
diff --git a/RedPandaIDE/mainwindow.ui b/RedPandaIDE/mainwindow.ui
index 6cfc87ac..3eb3509b 100644
--- a/RedPandaIDE/mainwindow.ui
+++ b/RedPandaIDE/mainwindow.ui
@@ -85,7 +85,7 @@
             <enum>QTabWidget::West</enum>
            </property>
            <property name="currentIndex">
-            <number>0</number>
+            <number>1</number>
            </property>
            <property name="usesScrollButtons">
             <bool>true</bool>
@@ -387,6 +387,9 @@
          <string>Debug</string>
         </attribute>
         <layout class="QHBoxLayout" name="horizontalLayout_4">
+         <property name="spacing">
+          <number>7</number>
+         </property>
          <property name="leftMargin">
           <number>0</number>
          </property>
@@ -404,6 +407,9 @@
            <property name="orientation">
             <enum>Qt::Horizontal</enum>
            </property>
+           <property name="handleWidth">
+            <number>3</number>
+           </property>
            <widget class="QFrame" name="frmEvaluate">
             <property name="frameShape">
              <enum>QFrame::StyledPanel</enum>
@@ -956,6 +962,7 @@
     <property name="title">
      <string>Help</string>
     </property>
+    <addaction name="actionC_C_Reference"/>
     <addaction name="actionAbout"/>
    </widget>
    <widget class="QMenu" name="menuRefactor">
@@ -1840,6 +1847,11 @@
     <string>Ctrl+M</string>
    </property>
   </action>
+  <action name="actionC_C_Reference">
+   <property name="text">
+    <string>C/C++ Reference</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>
diff --git a/RedPandaIDE/systemconsts.h b/RedPandaIDE/systemconsts.h
index d0748ad4..8af44fda 100644
--- a/RedPandaIDE/systemconsts.h
+++ b/RedPandaIDE/systemconsts.h
@@ -3,7 +3,7 @@
 
 #include <QStringList>
 
-#define DEVCPP_VERSION "0.6.7"
+#define DEVCPP_VERSION "0.6.8"
 
 #ifdef Q_OS_WIN
 #define APP_SETTSINGS_FILENAME "redpandacpp.ini"