save project

star.py

+username = "111"
+userpassword = "222"
+while True:
+    name = input("请输入用户名:")
+    password = input("请输入密码:")
+    if name == username and password == userpassword：
+       print("登陆成功！")
+       break
+    print("用户名和密码输入错误！请重新输入")
+print("欢迎来到贝尔编程！")
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