获取单个链接 @return

检查map里面的数据是否有 @param map @param keys

@param key @return

Close releases the resources used by the pool.

执行脚本，任务计划调用 @return

Flush flushes the output buffer to the Redis server.

@param type @param data @return

提交链接请求 @return 目标URL返回的回应值（一般应为200） @throws Exception

设置时间 @param key

* Fire callback functions and trigger events. Note that the loop over the * callback array store is done backwards! Further note that you do not wa