有助于因为你吧负重卸了就觉得跑起来轻了很对
http://wenku.baidu.com/link?url=PQXlGkGvDiobjyTNVfujmGoK93JwhhQlb99rnLmU23i34dxAgxH9J0Wj8UWNoKFIqMJEIVXTW6EYixOETM5uSILEvUFiR_YXwurGbO15LEK希望能帮助你
当然啊
有利于