save project

diy2.py

@@ -8,6 +8,7 @@ while True:
         break
     if name != username:
         print('用户名错误，请重新输入')
+        continue
     if password !=userpassword:
         print('密码错误，请重新输入')     
     print("用户名和密码错误!请重新输入")