JSFiddle - React, Tailwind, and code Playground

by booktu8

HTML

<textarea name="" id="txt1" cols="30" rows="10"></textarea></br>
<input id="btn" type="button" value="过滤"></br>
<textarea name="" id="txt2" cols="30" rows="10"></textarea>

JavaScript

window.onload=function(){
var otxt1=document.querySelector('#txt1');
var obtn=document.querySelector('#btn');
var otxt2=document.querySelector('#txt2');
var re=/'北京'/g;
obtn.onclick=function(){
console.log('bdl');

otxt2.value=otxt1.value.replace('北京','**')
}
}