js 初识

<!DOCTYPE>
<html>

<head lang="en">
<meta charset="utf-8">
<script class="youjs">
document.write("sdfsdfsdfsdf")
</script>

</head>
<body>

<p id="pid">hello</p>
<script src="myjs.js"></script>

<script>
document.getElementById("pid").innerHTML="更改ID ＝pic中的数据";
document.write("<h1>标签h1</h1>");
</script>

<script>

var i=10;
var j=10;
var m=i+j;
document.write(m);

</script>
<script>

var String="hello";//字符串
var i1=10;
var flag=true;
var arr=[1,222,1,2,3,45,6,"2332"];//数组
var arr=new Array("你好","他好");
arr[3]=1222;

document.write(arr[1]);
var n=null;
document.write(n);

</script>
</body>

posted @ 2015-05-15 14:21  谢小锋  阅读(129)  评论(0)    收藏  举报