Javascript对象的创建

<script type="text/javascript">
	people = new Object();
	people.name = "dongdong";
	people.age    = "22";
	document.write("name:"+people.name+",age:"+people.age);
</script>
<hr/>
<script type="text/javascript">
	people = {name:"lumia",age:"12"};
	document.write("name:"+people.name);
	document.write("age:"+people.age);
</script>
<hr/>
<script type="text/javascript">
	function people(name,age){
		this._name = name;
		this._age    =  age;
	}
	son = new people("aaron","26");
	document.write("name--"+son._name);
	document.write("age-----"+son._age);
</script>

//对象的创建


//字符串长度的获取

str.length(string);

<script type="text/javascript,mnvcxz\F">
var str = "hello,world";
document.write(str.length);                                                          //字符串长度的获取
document.write(str.indexOf("world"));                                        //字符串内容位置的获取,下标是从0开始的哦
document.write(str.match("dongdong")+"<br/>");                    //内容的匹配,不存在----->null
document.write(str.match("world"));	                                        //内容匹配,存在则输出匹配的字符串world
document.write(str.replace("world","javascript")+"<br/>");     //内容的替换
</script>


//字符串的切割

<script>
var str1 = "ji,ke,xue,yuan";
var s = str1.split(",");
document.write(s[1]);
</script>


//数组的定义及元素的访问

<script type="text/javascript">
var  myarr = ["dongdong","11019","@","live",".","com"];
document.write(myarr[0]);
</script>


//数组的合并

<script type="text/javascript">
var a = ["helllo","world"];
var b = ["heloo","php"];
var c =a.concat(b);
document.write(c);
</script>

//数组的排序---内置函数

<script type="text/javascript">
var a=["c","f","a","b","l"];
var c =a.sort(a);
document.write(c);
</script>


//数组的自定义排序

<script type="text/javascript">
var a=["1","3","5","2","6","45","9"];
var c=a.sort(function(a,b){
return b-a;
});
document.write(c);
</script>


//数组末尾追加元素

<script type="text/javascript">
var a=["a","b"];
      a.push("c");
      document.write(a);
</script>


//数组的翻转

<script type="text/javascript">
var a=["d","c","b","a"];
document.write(a.reverse());
</script>



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