Node.Js fs模塊---readStream類

const fs = require("fs");
const path = require("path");

let filename = path.resolve('../files/innerDir/innerTxt.txt');
let readStream = fs.createReadStream(filename,{encoding:'utf8'});
readStream.on("open",(data)=>{
    console.log('打開了',data)
})
readStream.on("data",(data)=>{
    console.log("數據來了！");
    console.log("已經讀取的字節數",readStream.bytesRead);
})
readStream.on("close",(data)=>{
    console.log('guanle')
})
console.log(readStream.path+"哈哈哈")