Node.js子进程：从已经初始化的进程写入标准输入

Node.js子进程：从已经初始化的进程写入标准输入

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符号以使命令生效：

var spawn = require('child_process').spawn,    child = spawn('phantomjs');child.stdin.setEncoding('utf-8');child.stdout.pipe(process.stdout);child.stdin.write("console.log('Hello from PhantomJS')n");child.stdin.end(); /// this call seems necessary, at least with plain node.js executable