对Node的文件系统解析感到困惑。这是我的代码:varfs=require('fs'),xml2js=require('xml2js');varparser=newxml2js.Parser();varstream=fs.createReadStream('xml/bigXML.xml');stream.setEncoding('utf8');stream.on('data',function(chunk){parser.parseString(chunk,function(err,result){console.dir(result);console.log('Done');});}