save project

diy2.py

 username = "erer"
 userpassword = "123456"
+i=3
 while True:
     name = input("请输入用户名:")
     password = input("请输入密码:")
@@ -7,7 +8,11 @@ while True:
         print("登录成功!")
         break
     elif name!=username:
+        i-=1
         print("用户名错误，请重新输入")
     else:
         print("密码错误请重新输入")
+    if i==0:
+        print("已锁定")
+        exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file