save project

diy2.py

 username = "python"
 userpassword = "123456"
+i=5
 while True:
+    if i>0:    
         name = input("请输入用户名:")
         password = input("请输入密码:")
         if name == username and password == userpassword:
@@ -10,4 +12,7 @@ while True:
             print("用户名不存在！")
         else:
             print("密码错误！")
+    else:
+        print("账户被锁定")
+        exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file