nodejs读写json文件的简单方法(必看)

var fs=reauire('fs');var file="d://0.json";var result=JSON.parse(fs.readFileSync( file));//操作对象

var coors = {};  coors.left_top = {};  coors.right_top = {};  coors.left_bottom = {};  coors.right_bottom = {};//填充coors中内容var filename = "d://coors//0.json"; fs.writeFileSync(filename, JSON.stringify(coors)); //对象嵌套 var fs = require('fs');var fileDirectory = "D://column";var newfileDirectory = "d://new";if (fs.existsSync(fileDirectory)) {  var files = fs.readdirSync(fileDirectory);  for (var i = 0; i < files.length; i++) {    var filePath = fileDirectory + "/" + files[i];    var newfilepath = newfileDirectory + "/" + files[i]    var filestr = JSON.parse(fs.readFileSync(filePath));    for (var item in filestr) {      var inter=filestr[item];       for(var m in inter)       {        inter[m]=parseFloat(inter[m]);       }      fs.writeFileSync(newfilepath, JSON.stringify(filestr));    }  }} else {  console.log(fileDirectory + " Not Found!");}