($barrier);
echo 'all finished';
var_dump($aa);
};
```
照葫芦画瓢,但到了这里就不行了Coroutine::create(function () use ($devicePlc, &$plcs) {
$plcs[] = $this->test($devicePlc); // 执行实际业务代码function test($test)
{
static $n = 0;
sleep(5);
$n++;
return $n;
}
```
#### 为此你搜索到了哪些方案及不适用的原因找不到