同步进程的创建

child_process.spawnSync()、child_process.execSync() 和 child_process.execFileSync() 方法是同步的，将阻塞 Node.js 事件循环，暂停任何其他代码的执行，直到衍生的进程退出。

像这样的阻塞调用对于简化通用脚本任务和在启动时简化应用程序配置的加载/处理非常有用。

The child_process.spawnSync(), child_process.execSync(), and child_process.execFileSync() methods are synchronous and will block the Node.js event loop, pausing execution of any additional code until the spawned process exits.

Blocking calls like these are mostly useful for simplifying general-purpose scripting tasks and for simplifying the loading/processing of application configuration at startup.