stream.pipe(process.stdout); 问题

exec.start(function(err, stream) { if (err) return; stream.setEncoding(‘utf8’); stream.pipe(process.stdout); // how to get the output result?? // return result; });

如上，如何获取stream留的信息，并返回。thanks.

booxood 1楼•2小时前

用 Writable Stream

exec.start(function(err, stream) {
  if (err) return;
  stream.setEncoding(‘utf8’);

  var Writable = require('stream').Writable;
  var ws = Writable();
  ws._write = function (chunk, encoding, next) {
      // chunk  就是你要的
      next();
  }
  stream.pipe(ws);
});