前言
嗨喽,大家好呀~这里是爱看美女的茜茜呐
又到了学Python时刻~
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 3.6
Python是一种代表简单主义思想的语言。
阅读一个良好的Python程序就感觉像是在读英语一样。
它使你能够专注于解决问题而不是去搞明白语言本身。
-
Pycharm
PyCharm是一种Python IDE(Integrated Development Environment,集成开发环境),
带有一整套可以帮助用户在使用Python语言开发时提高其效率的工具
比如调试、语法高亮、项目管理、代码跳转、智能提示、自动完成、单元测试、版本控制。
此外,该IDE提供了一些高级功能,以用于支持Django框架下的专业Web开发。
代码
界面设置
导入模块
import tkinter as tk
实例化一个窗体对象
root = tk.Tk()
root.title('计算器')
大小以及出现的位置
root.geometry("295x280+150+150")
透明度
root.attributes("-alpha", 0.9)
背景
root["background"] = "#ffffff"
标签
lable1 = tk.Label(root, textvariable=result_num, width=20, height=2, font=('宋体', 20), justify='left', background='#ffffff', anchor='se')
布局
lable1.grid(padx=4, pady=4, row=0, column=0, columnspan=4)
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
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尾语 💝
感谢你观看我的文章呐~本次航班到这里就结束啦 🛬
希望本篇文章有对你带来帮助 🎉,有学习到一点知识~
躲起来的星星🍥也在努力发光,你也要努力加油(让我们一起努力叭)。
最后,博主要一下你们的三连呀(点赞、评论、收藏),不要钱的还是可以搞一搞的嘛~
不知道评论啥的,即使扣个6666也是对博主的鼓舞吖 💞 感谢 💐
来源地址:https://blog.csdn.net/m0_72282564/article/details/127904445