怎么利用Python开发一个桌面小程序
这篇文章将为大家详细讲解有关怎么利用Python开发一个桌面小程序,小编觉得挺实用的,因此分享给大家做个参考,希望大家阅读完这篇文章后可以有所收获。
为上虞等地区用户提供了全套网页设计制作服务,及上虞网站建设行业解决方案。主营业务为网站建设、成都网站设计、上虞网站设计,以传统方式定制建设网站,并提供域名空间备案等一条龙服务,秉承以专业、用心的态度为用户提供真诚的服务。我们深信只要达到每一位用户的要求,就会得到认可,从而选择与我们长期合作。这样,我们也可以走得更远!
开发环境:
Python 3.6
Pycharm
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
功能
添加数字
def append_num(i): lists.append(i) result_num.set(''.join(lists))
选择运算符号
def operator(i): if len(lists) > 0: if lists[-1] in ['+', '-', '*', '/']: lists[-1] = i else: lists.append(i) result_num.set(''.join(lists))
清零
def clear(): lists.clear() result_num.set(0)
退格
def back(): del lists[-1] result_num.set(lists)
等号
def equal(): a = ''.join(lists) end_num = eval(a) result_num.set(end_num) lists.clear() lists.append(str(end_num))
定义一个列表收集输入的内容
lists = [] result_num = tk.StringVar() result_num.set(0)
最后运行代码,效果如下图
先试试
运算得出结果
关于“怎么利用Python开发一个桌面小程序”这篇文章就分享到这里了,希望以上内容可以对大家有一定的帮助,使各位可以学到更多知识,如果觉得文章不错,请把它分享出去让更多的人看到。
网站标题:怎么利用Python开发一个桌面小程序
文章起源:http://azwzsj.com/article/ijedpp.html