新增GUI用户界面,修正了一些小问题
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@ -59,8 +59,7 @@ def solve_equation(eq):
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try:
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result = sp.optimize.lsq_linear(matrix, constant, bounds=(0, None)).x.tolist()
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except ValueError:
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print('无法配平')
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return None
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raise ValueError('无法配平')
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# 将结果写入化学方程式,最后一个生成物的系数需要计算得到
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last_substance = eq['right'][-1]
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69
main.py
69
main.py
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@ -5,19 +5,68 @@
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import parser
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import equation_solver
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import tkinter
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from tkinter import messagebox
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from ttkbootstrap import Style
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from validity_check import IllegalAtomException
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# 按间距中的绿色按钮以运行脚本。
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if __name__ == '__main__':
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while True:
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eq = input('请输入化学方程式:(输入exit退出)')
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if eq == 'exit':
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break
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# 新建样式
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style = Style('flatly')
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# 创建窗口
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window = style.master
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window.title('化学方程式自动配平器')
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window.geometry('500x140')
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# 创建输入框
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input_label = tkinter.Label(window, text='输入方程式:')
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input_label.place(x=10, y=10)
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input_entry = tkinter.Entry(window)
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input_entry.place(x=100, y=10, width=300, height=30)
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# 创建输出框
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output_label = tkinter.Label(window, text='输出方程式:')
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output_label.place(x=10, y=50)
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output_entry = tkinter.Entry(window)
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output_entry.place(x=100, y=50, width=300, height=30)
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# 创建按钮
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button = tkinter.Button(window, text='配平')
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button.place(x=420, y=10, width=60, height=70)
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# 创建菜单
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menu = tkinter.Menu(window)
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menu.add_command(label='关于',
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command=lambda: messagebox.showinfo('关于', '化学方程式自动配平器\n作者:lucas8485\n版本:1.0'))
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menu.add_command(label='帮助', command=lambda: messagebox.showinfo('帮助', '''输入方程式,点击配平按钮,即可得到配平后的方程式。
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注意:方程式中的元素必须是化学元素的符号,
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不能是化学元素的全称,且大小写敏感。
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如果有分隔符,请不要输入分隔符。'''))
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window.config(menu=menu)
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# 事件绑定
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def balance():
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eq = input_entry.get()
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try:
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eq = parser.parse_equation(eq)
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eq = equation_solver.solve_equation(eq)
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if eq is not None:
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print('化学方程式:', parser.format_equation(eq))
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except Exception as e:
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print(e.args[0])
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parsed_eq = parser.parse_equation(eq)
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output_entry.delete(0, 'end')
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except IllegalAtomException:
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# 弹出错误提示
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tkinter.messagebox.showerror('错误', '输入的方程式有误!')
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return
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except ValueError:
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# 弹出错误提示
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tkinter.messagebox.showerror('错误', '输入的方程式有误!')
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return
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try:
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balanced_eq = equation_solver.solve_equation(parsed_eq)
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except ValueError:
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tkinter.messagebox.showerror('错误', '输入的方程式无法配平!')
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return
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output_entry.delete(0, tkinter.END)
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output_entry.insert(0, parser.format_equation(balanced_eq))
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button.bind('<Button-1>', lambda event: balance())
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# 进入消息循环
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window.mainloop()
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# 访问 https://www.jetbrains.com/help/pycharm/ 获取 PyCharm 帮助
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14
parser.py
14
parser.py
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@ -154,12 +154,14 @@ def parse_equation(eq):
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:param eq: 化学方程式
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:return: 化学方程式的字典表示
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"""
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eq = eq.replace(' ', '')
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eq = eq.replace('->', '=')
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eq = eq.replace('=', '=>')
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eq = eq.split('=>')
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left = eq[0]
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right = eq[1]
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equation = eq.replace(' ', '')
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equation = equation.replace('->', '=')
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equation = equation.replace('=', '=>')
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equation = equation.split('=>')
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if len(equation) != 2:
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raise ValueError('化学方程式错误')
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left = equation[0]
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right = equation[1]
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left = left.split('+')
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right = right.split('+')
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left = [parse_molecule(molecule) for molecule in left]
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@ -1,2 +1,3 @@
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numpy~=1.23.5
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scipy~=1.9.3
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scipy~=1.9.3
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ttkbootstrap
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