????????????????????????????????????????????獲取地址欄參數(shù)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>獲取地址欄參數(shù)</title>
<script type="text/javascript">
window.onload = function(){
//url？aa=tom#12
var data = window.location.search;//？aa=tom
var hash = window.location.hash;//#12
alert(hash);//#12
var oSpan = document.getElementById('span01');
// alert(data);//谷朝？aa=tom
var arr = data.split('=');
// alert(arr);//?aa,tom
var name = arr[1];
oSpan.innerHTML = name;
}
</script>
</head>
<body>
<div>歡迎<span id="span01"></span>訪問我的主頁</div>
</body>
</html>
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????????????????????????????????????????????????????????Math
<script type="text/javascript">
// var num = Math.random();
// alert(num);//彈出0-1之間的隨機數(shù)
var a = 10;
var b = 20;
// var num = Math.random()*(b-a)+a;
// alert(num);//彈出10-20之間的隨機數(shù)
var arr = [];
for(var i=0; i<20; i++){
// var num = Math.floor(Math.random()*(b-a)+a);//向下取整，10-19
var num = Math.floor(Math.random()*(b-a + 1)+a);//向下取整太援，10-20
arr.push(num);//生成一個數(shù)就放進數(shù)組
}
alert(arr);//17,20,20,11,11,19,17,16,10,11,16,11,18,13,13,11,17,14,19,19
</script>
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? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 單體創(chuàng)建對象
<script type="text/javascript">
var Tom = {
// 屬性
name:'tom',
age:18,
// 方法
showName:function(){
alert(this.name);
},
showAge:function(){
alert(this.age);
}
}
//調(diào)用屬性
alert(Tom.name);
alert(Tom.age);
//調(diào)用方法
Tom.showName();
</script>
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????????????????????????????????????????????工廠模式創(chuàng)建對象
<script type="text/javascript">
function Person(name,age,job){
//創(chuàng)建一個空對象
// var o = new Object();//方式一
var o = {};//方式二
o.name = name;
o.age = age;
o.job = job;
o.showName = function(){
alert(this.name);
}
o.showAge = function(){
alert(this.age);
}
o.showJob = function(){
alert(this.job);
}
return o;
}
var Tom = Person('tom',18,'程序猿');
Tom.showJob();
var Jack = Person('jack',19,'攻城獅');
Jack.showJob();
</script>
