js面向对象思想话矩形
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<html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <div id="main" style="position:relative"></div> <script> function Rect(options) { this._init(options); } Rect.prototype={ //属性 _init:function (options) { //父标签 this.parentId=options.parentId; //位置 this.left=options.left||100; this.top=options.top||100; //自身的属性 this.width=options.width||100; this.height=options.height||50; this.bgColor=options.bgColor||‘#000‘; this.borderRadius=options.borderRadius||0; this.border=options.border||‘none‘; }, //行为 render:function () { //1.获取父标签 var parentEle=document.getElementById(this.parentId); //2.创建矩形标签 var reactEle=document.createElement(‘div‘); parentEle.appendChild(reactEle); reactEle.style.position=‘absolute‘; reactEle.style.left=this.left+‘px‘; reactEle.style.top=this.top+‘px‘; reactEle.style.width=this.width+‘px‘; reactEle.style.height=this.height+‘px‘; reactEle.style.backgroundColor=this.bgColor; reactEle.style.border=this.border; reactEle.style.borderRadius=this.borderRadius+‘px‘; } } //创建矩形对象 var rect=new Rect({ parentId:‘main‘, left:200, top:200, width:500, height:300, bgColor:‘pink‘, borderRadius:20, border:‘10px solid #000‘ }); rect.render(); </script> </body> </html>
面向对象js计算功能
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<script type="text/html"></script>
<script>
var Caculator={
result:0,
jia:function (num) {
this.result+=num;
return this;
},
jian:function (num) {
this.result-=num;
return this;
},
cheng:function(num){
this.result*=num;
return this;
},
chu:function (num) {
this.result/=num;
return this;
},
log:function () {
console.log(this.result);
return this;
},
clean:function () {
this.result=0;
return this;
}
};
Caculator.jia(6);
Caculator.jia(6);
Caculator.cheng(2);
Caculator.chu(3);
Caculator.jian(4);
console.jia(6).jia(6).cheng(2).chu(3).jian(4).log();
</script>
</body>
</html>
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