Python开发的第一步：利用Python开发一个桌面小程序

2023-09-06 12:35| 来源: 网络整理| 查看: 265

前言

当使用桌面应用程序的时候，有没有那么一瞬间，想学习一下桌面应用程序开发？建议此次课程大家稍作了解不要浪费太多时间，因为没有哪家公司会招聘以为Python程序员开发桌面程序吧？

开发环境：

Python 3.6Pycharm 代码

界面设置

1.导入模块

import tkinter as tk

2.实例化一个窗体对象

root = tk.Tk()

3.标题

root.title('计算器')

4.大小以及出现的位置

root.geometry("295x280+150+150")

5.透明度

root.attributes("-alpha", 0.9)

6.背景

root["background"] = "#ffffff"

7.标签

lable1 = tk.Label(root, textvariable=result_num, width=20, height=2, font=('宋体', 20), justify='left', background='#ffffff', anchor='se')

8.布局

lable1.grid(padx=4, pady=4, row=0, column=0, columnspan=4)

9.按钮

button_clear = tk.Button(root, text='C', width=5, font=('宋体', 16), relief='flat', background='#C0C0C0', command=lambda: clear()) button_back = tk.Button(root, text='←', width=5, font=('宋体', 16), relief='flat', background='#C0C0C0', command=lambda: back()) button_division = tk.Button(root, text='/', width=5, font=('宋体', 16), relief='flat', background='#C0C0C0', command=lambda: operator('/')) button_multiplication = tk.Button(root, text='x', width=5, font=('宋体', 16), relief='flat', background='#C0C0C0', command=lambda: operator('*')) button_clear .grid(padx=4, row=1, column=0) button_back .grid(padx=4, row=1, column=1) button_division .grid(padx=4, row=1, column=2) button_multiplication .grid(padx=4, row=1, column=3) button_seven = tk.Button(root, text='7', width=5, font=('宋体', 16), relief='flat', background='#FFDEAD', command=lambda: append_num('7')) button_eight = tk.Button(root, text='8', width=5, font=('宋体', 16), relief='flat', background='#FFDEAD', command=lambda: append_num('8')) button_nine = tk.Button(root, text='9', width=5, font=('宋体', 16), relief='flat', background='#FFDEAD', command=lambda: append_num('9')) button_subtraction = tk.Button(root, text='—', width=5, font=('宋体', 16), relief='flat', background='#C0C0C0', command=lambda: operator('-')) button_seven .grid(padx=4, row=2, column=0) button_eight .grid(padx=4, row=2, column=1) button_nine .grid(padx=4, row=2, column=2) button_subtraction .grid(padx=4, row=2, column=3) button_four = tk.Button(root, text='4', width=5, font=('宋体', 16), relief='flat', background='#FFDEAD', command=lambda: append_num('4')) button_four.grid(padx=4, pady=4, row=3, column=0) button_five = tk.Button(root, text='5', width=5, font=('宋体', 16), relief='flat', background='#FFDEAD', command=lambda: append_num('5')) button_five.grid(padx=4, row=3, column=1) button_six = tk.Button(root, text='6', width=5, font=('宋体', 16), relief='flat', background='#FFDEAD', command=lambda: append_num('6')) button_six.grid(padx=4, row=3, column=2) button_addition = tk.Button(root, text='+', width=5, font=('宋体', 16), relief='flat', background='#C0C0C0', command=lambda: operator('+')) button_addition.grid(padx=4, row=3, column=3) button_one = tk.Button(root, text='1', width=5, font=('宋体', 16), relief='flat', background='#FFDEAD', command=lambda: append_num('1')) button_one.grid(padx=4, row=4, column=0) button_two = tk.Button(root, text='2', width=5, font=('宋体', 16), relief='flat', background='#FFDEAD', command=lambda: append_num('2')) button_two.grid(padx=4, row=4, column=1) button_three = tk.Button(root, text='3', width=5, font=('宋体', 16), relief='flat', background='#FFDEAD', command=lambda: append_num('3')) button_three.grid(padx=4, row=4, column=2) button_equal = tk.Button(root, text='=', width=5, height=3, font=('宋体', 16), relief='flat', background='#C0C0C0', command=lambda: equal()) button_equal.grid(padx=4, row=4, rowspan=5, column=3) button_zero = tk.Button(root, text='0', width=12, font=('宋体', 16), relief='flat', background='#FFDEAD', command=lambda: append_num('0')) button_zero.grid(padx=4, pady=4, row=5, column=0, columnspan=2) button_decimal = tk.Button(root, text='.', width=5, font=('宋体', 16), relief='flat', background='#FFDEAD', command=lambda: append_num('.')) button_decimal.grid(padx=4, row=5, column=2)

现在得出界面效果