save project

diy1.py

@@ -8,6 +8,7 @@ while True:
         print("登陆成功！")
         print("登陆成功！")
     if not a==username:
     if not a==username:
         print("用户名不存在")
         print("用户名不存在")
+        continue
     if not b==userpassword:
     if not b==userpassword:
         print("密码错误")
         print("密码错误")
         break
         break