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面向对象-案例（选项卡）.html
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面向对象-案例（选项卡）.html
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<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>面向对象-案例（选项卡）</title>
<meta name="viewport"
content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
<script type="text/javascript">
// 总共分了10份,准备给content 10份
setRem();
window.onresize = setRem;
function setRem() {
document.getElementsByTagName('html')[0].style.fontSize = document.documentElement.clientWidth / 10 + 'px';
}
</script>
<style>
.on {
background-color: brown;
color: beige;
}
.box div {
width: 5rem;
height: 5rem;
border: 1px solid #cccccc;
display: none;
font-size: 20px;
color: brown;
}
</style>
</head>
<body>
<div id="box" class="box">
<input type="button" value="click 1" class="on"/>
<input type="button" value="click 2"/>
<input type="button" value="click 3"/>
<div style="display: block">click 1</div>
<div>click 2</div>
<div>click 3</div>
</div>
<div id="box2" class="box">
<input type="button" value="click 1" class="on"/>
<input type="button" value="click 2"/>
<input type="button" value="click 3"/>
<div style="display: block">click 1</div>
<div>click 2</div>
<div>click 3</div>
</div>
<script>
class Tap {
constructor(id) {
this.oBox = document.getElementById(id);
this.aBtn = this.oBox.getElementsByTagName("input");
this.aDiv = this.oBox.getElementsByTagName("div");
this.iNow = 0;
this.init();
}
init() {
for (let i = 0; i < this.aBtn.length; i++) {
this.aBtn[i].onclick = function () {
this.iNow = i;
this.hide();
this.show(i);
document.title = this.iNow;
}.bind(this);
}
}
hide() {
for (let i = 0; i < this.aBtn.length; i++) {
this.aBtn[i].className = "";
this.aDiv[i].style.display = "none";
}
}
show(index) {
this.aBtn[index].className = "on";
this.aDiv[index].style.display = "block";
}
}
new Tap("box");
//继承
class AutoTap extends Tap {
next(){
this.iNow++;
if(this.iNow == this.aBtn.length)this.iNow=0;
this.hide();
this.show(this.iNow);
}
}
var at = new AutoTap("box2");
document.onclick= function(){
at.next();
}
</script>
</body>
</html>