node.js子进程-生成和派生之间的区别

• spawn - child_process.spawn使用给定的命令启动一个新进程。
• fork - child_process.fork方法是spawn（）创建子进程的特例。

spawn（）方法

child_process.spawn method launches a new process with a given command. It has the following signature −

child_process.spawn(command[, args][, options])

Read more about options

The spawn() method returns streams (stdout &stderr) and it should be used when the process returns a volume amount of data. spawn() starts receiving the response as soon as the process starts executing.

The fork() Method

child_process.fork method is a special case of spawn() to create Node processes. It has the following signature −

 child_process.fork(modulePath[, args][, options])

The fork method returns an object with a built-in communication channel in addition to having all the methods in a normal ChildProcess instance.