save project

diy1.py

@@ -7,9 +7,8 @@ while True:
     if name==username and l==userpassword:
         print("登录成功")
         break
-    if name!=username:
+    elif name!=username:
         print("账号不存在，请重新输入：")
-    continue
     if l!=userpassword:
         print("密码错误，请重新输入：")
 print("welcome")