摘要: 输出: this is long time operationi am doing firstundefined //间隔5秒后执行the long time operation cost 5000 msthis is f2, i am callback 输出: this is long time 阅读全文
posted @ 2017-07-31 22:38 zhoudingzhao 阅读(133) 评论(0) 推荐(0) 编辑