save project

diy2.py

@@ -3,6 +3,7 @@ username = "python"
 userpassword = "123456"
 while True:
     if i>0;
+        i-=1
         name = input("请输入用户名:")
         password = input("请输入密码:")
         if name == username and password == userpassword:
@@ -14,4 +15,5 @@ while True:
             print("密码错误!请重新输入") 
     else 
         print("你的账号已被锁定") 
+        exit()
     print("欢迎来到贝尔编程!")
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