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45 lines
1.2 KiB
45 lines
1.2 KiB
from tkinter import *
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user_login={'aaa':'123456','bbb':'888888','ccc':'333333'}
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#定义登录次数
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count=0
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def login():
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global count
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username =entry_username.get()
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if username not in user_login:
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label_message.config(text='账号错误!')
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else:
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password =entry_password.get ()
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if (password==user_login [username]):
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label_message.config(text ='登录成功！')
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else:
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label_message.config(text='密码错误！还可以尝试{}次'.format(2-count))
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count =count +1
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if count ==3:
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label_message.config(text ='登录失败！')
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btn_login.config(state="disabled")
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#创建主窗口
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window =Tk()
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window.title("用户登录")
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window.geometry("300x200")
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#创建标签和输入框
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label_username =Label(window,text="账号：")
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label_username.pack()
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entry_username =Entry(window)
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entry_username.pack()
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label_password=Label(window,text="密码：")
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label_password.pack()
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entry_password =Entry(window, show ='*')
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entry_password.pack()
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#创建登录按钮和消息提示标签
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btn_login=Button(window, text="登录",command=login)
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btn_login.pack()
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label_message =Label (window, text ="")
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label_message.pack()
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#运行主循环
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window.mainloop()
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