save project

diy2.py

+i=3
 username = "python"
 userpassword = "123456"
 while True:
+    if i >0:
         name = input("请输入用户名:")
         password = input("请输入密码:")
+        i=i-1
         if name == username and password == userpassword:
             print("登录成功!")
             break
-    if username!=username:
+        if username!=name:
             print("用户账号登录错误") 
             continue
-    if userpassword!=userpassword:
+        if password!=userpassword:
             print("用户密码登录错误")
+    else:
+        print("你的账户已锁定，请重新输入!") 
+        exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file