save project

diy2.py

-username = "python"
-userpassword = "123456"
-while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name == username and password == userpassword:
-        print("登录成功!")
-    print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
+i=3
+username="python"
+userpassword="123456"
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