There is something wrong with my cmd. Some Chinese cannot be displayed. Ask for advice!

  node.js, question

The code is from a w3c novice, as follows:

var fs = require("fs");
 
 //asynchronous read
 fs.readFile('mouse.txt', function (err, data) {
 if (err) {
 return console.error(err);
 bracket
 Log ("asynchronous read:" add data.toString ())));
 });

Txt reads as follows:

Rookie Tutorial website address: www.runoob.com
 File read instance

Cmd operation results are as follows:
图片描述

As you can see, the Chinese language of mouse.txt inside does not know where it has gone. How should I solve this problem?
I really don’t know what to do.

Add character set:

var fs = require("fs");
 
 //asynchronous read
 fs.readFile('mouse.txt', 'utf-8', function (err, data) {
 if (err) {
 return console.error(err);
 bracket
 Log ("asynchronous read:" add data.toString ())));
 });