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嗨我正在尝试读取文件并通过使用.createReadStream方法转换为数据,但是,当我执行我的程序时,它不会给我任何错误,但它console.log进入终端'未定义'任何意见将有助于感谢!无法从节点中的流读取数据
//Readable Steams
var fs = require("fs");
var data = '';
//Create a reable stream
var readerStream = fs.createReadStream('input.txt');
readerStream.setEncoding('utf8');
//Handle events data, end, error
readerStream.on('data', function(chunk){
data += chunk;
});
readerStream.on('end', function(data){
console.log(data);
});
readerStream.on('error', function(err){
console.log(err.stack);
});
console.log("program ended");
你有没有做过一些[研究](http://codewinds.com/blog/2013-08-04-nodejs-readable-streams.html):最终回调更改为这? –