save project

diy1.py

+username="18845"
+userpassword="54188"
+while True:
+    name=input("请输入用户名")
+    password=input("请输入用密码")
+    if name==username and password==userpassword:
+        print("登录成功")
+        break
+print("用户名和密码错误！请重新输入")
+print("欢迎来到贝尔编程")
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