save project

diy2.py

 username = "python"
 userpassword = "123456"
-while True:
+i=0
+while a<5:
     name = input("请输入用户名:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
@@ -11,5 +12,8 @@ while True:
     else:
         print("密码错误，请重新输入")
     print("用户名和密码错误!请重新输入")
-
-print("欢迎来到贝尔编程!")
\ No newline at end of file
+    a=a+1
+if a==5:
+    print("错误次数超过上限，您将无法继续输入")
+else:
+    print("欢迎来到贝尔编程!")
\ No newline at end of file