# Coroutine::resume 恢復某個協程，使其繼續運行。 ```php function Swoole\Coroutine::resume(string $coroutineId); ``` * 參數`$coroutineId`為要恢復的協程ID，在協程內可以使用`getuid`獲取到協程的ID * 當前協程處于掛起狀態時，另外的協程中可以使用`resume`再次喚醒當前協程 實例 ----- ```php use Swoole\Coroutine as co; $id = go(function(){ $id = co::getUid(); echo "start coro $id\n"; co::suspend(); echo "resume coro $id @1\n"; co::suspend(); echo "resume coro $id @2\n"; }); echo "start to resume $id @1\n"; co::resume($id); echo "start to resume $id @2\n"; co::resume($id); echo "main\n"; --EXPECT-- start coro 1 start to resume 1 @1 resume coro 1 @1 start to resume 1 @2 resume coro 1 @2 main ```