<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.all
{
width: 510px;
height: 200px;
border: solid 1px red;
margin-left: 300px;
margin-top: 50px;
position: absolute;
}
.first textarea
{
width: 200px;
height: 180px;
border: solid 1px white;
background: yellow;
position: relative;
float: left;
margin-left: 6px;
margin-top: 8px;
}
.second
{
position: relative;
float: left;
}
.second #btn
{
margin-top: 10px;
background: red;
color: white;
}
.third
{
width: 200px;
height: 180px;
border: solid 1px white;
background: deepskyblue;
position: relative;
float: left;
margin-left: 2px;
margin-top: 8px;
}
</style>
<script>
window.onload = function () {
var text = document.getElementById('left');
var btn = document.getElementById('btn');
var right = document.getElementById('right');
var firstnum = document.getElementById('num');
var secondnum = document.getElementById('number');
btn.onclick = function () {
var str = text.value;
var arr = str.split("");
var newstr = "";
var index = 0;
secondnum.innerHTML = arr.length;
var timerid = setInterval(function () {
left.value = left.value.substr(1);
if(firstnum.innerHTML == arr.length)
{
clearInterval(timerid);
}
else
{
newstr = newstr + arr[index];
index++;
}
right.innerHTML = newstr;
firstnum.innerHTML = index;
},100)
}
}
</script>
</head>
<body>
<div class = "all">
<div class = "first">
<textarea cols="25" rows="11" id = "left"></textarea>
</div>
<div class = "second">
<input type = "button" value = "把文字右移" id = "btn">
<p><span id = "num">0</span>/<span id = "number">0</span></p>
</div>
<div class = "third" id = "right"></div>
</div>
</body>
</html>
网友评论