Node.JS文件系统解析实例详解

var fs = require("fs")

var fs = require('fs')
fs.readFile( 'a.txt','utf-8', function (err,data) {
  if( err )
  {
    console.error(err)
  }else{
    console.log( "not aynsc===>"   data )
  }
})
console.log('app started')
 
var rlt = fs.readFileSync('a.txt')
console.log('rlt====>'  rlt )