child_process以及进程通信
spawn() exec() execFile() fork()
1.spawn()
var spawn = require('child_process').spawn;
var ls_var = spawn('ls',['-lh','/var']);
ls_var.stdout.on('data',function(data){
console.log("stdout:"+data;)
});
2.exec()
var exec = require('child_process').exec;var child = exec('cat 18.js',function(error,stdout,stderr){console.log(stdout);});
3.spawn绑定系统事件
var cp = require('child_process');
var cat = cp.spawn('cat');
cat.stdout.on('data',function(d){
console.log(d.toString());
});
cat.on('exit',function(){
console.log('cat on exit');
});
cat.on('close',function(){
console.log('cat on close');
});
cat.stdin.write('cat on data');
cat.stdin.end();
