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!")
+        break
+    if name != username:
+        print("害羞羞，你这人就喜欢开玩笑，快，快把你的真名告诉我：")
+        continue
+    if password != userpassword:
+        print("你他妈玩我呢,密码！输密码！！！")
+    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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