基于tkinter的简易加减乘除计算器

Posted 2022-02-06 只是有点小怂

from tkinter import *
from tkinter import ttk
# 整个窗体的GUI是一个类

class Calculator(Tk):

    def __init__(self):
        self.frame = Tk()
        self.frame.title("计算器")
        self.frame.geometry("700x200+300+250")
        self.frame.resizable() # 不允许调整大小
        self.frame["bg"] = "darkgray" # 窗体背景色


        # 添加一个文本输入框 数字1
        self.var_num01 = StringVar()
        self.Entry_num01 = Entry(self.frame, textvariable=self.var_num01, font=("微软雅黑", 14, "bold"), width=10)
        self.Entry_num01.place(x=20, y=80)

        # 添加一个下拉框的运算符
        self.var_action = StringVar()
        self.ComboBox_action = ttk.Combobox(self.frame, textvariable=self.var_action, font=("微软雅黑", 14, "bold"), width=4)
        self.ComboBox_action["values"] = ["加[+]","减[-]","乘[*]","除[/]","余[%]"]
        self.ComboBox_action["state"] = "readonly" # 不许修改
        self.ComboBox_action.current(0) # 默认为加
        self.ComboBox_action.place(x=170, y=80)

        # 添加一个文本输入框 数字2
        self.var_num02 = StringVar()
        self.Entry_num02 = Entry(self.frame, textvariable=self.var_num02, font=("微软雅黑", 14, "bold"), width=10)
        self.Entry_num02.place(x=265, y=80)

        # 添加一个Label标签
        self.Label_result = Label(self.frame, text="=",font=("微软雅黑", 14, "bold"), width=2)
        self.Label_result.place(x=400, y=80)

        # 添加一个结果文本框
        self.var_result = StringVar()
        self.Entry_result = Entry(self.frame, textvariable=self.var_result, state="readonly",font=("微软雅黑", 14, "bold"), width=10)
        self.Entry_result.place(x=450, y=80)

        # 显示计算按钮
        self.Button_Cal = Button(self.frame, text="计算",width=6, command=self.number_cal)
        self.Button_Cal.place(x=600, y=80)

    def show(self):
        self.frame.mainloop()

    def number_cal(self):
        num01 = self.var_num01.get()
        num02 = self.var_num02.get()
        action = self.var_action.get()
        if "+" in action:
            self.var_result.set(str(int(num01) + int(num02)))
        elif "-" in action:
            self.var_result.set(str(int(num01) - int(num02)))
        elif "*" in action:
            self.var_result.set(str(int(num01) * int(num02)))
        elif "/" in action:
            self.var_result.set(str(int(num01) / int(num02)))
        elif "%" in action:
            self.var_result.set(str(int(num01) % int(num02)))
        else:
            pass

if __name__ == "__main__":
    my_calc = Calculator()
    my_calc.show()