save project

diy2.py

@@ -5,12 +5,12 @@ while True:
     if i>0:
         name = input("请输入用户名:")
         password = input("请输入密码:")
+        i-=1
         if name == username and password == userpassword:
             print("登录成功!")
             break
         if name!=username:
             print("账号错误")
-            i-=1
             continue
         if password!=userpassword:
             print("密码错误")