<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title></title>
<style type="text/css">
</style>
<script type="text/javascript">
a = 1, 2, 3,5;
//alert( -[1,]); //IE6/7/8都是NaN， 而IE9开始就和标准浏览器一样了
//alert(0 == false) //0假 1真
/*
if(! -[1,]) {
alert("IE6/7/8");
} else {
alert("IE9+");
}
var ie = !-[1,];
*/
//alert(ie);
//写document的地方，决定了你在程序中引用js的位置
document.write(‘<script type="text/javascript" src="http://localhost:63342/jsXueXi/20140810/test4.js"><\/script>‘);
document.write(‘<script type="text/javascript" src="http://localhost:63342/jsXueXi/test3.js"><\/script>‘);
document.write(1);
document.write(2);
var arr = new Array();
alert(Object.prototype.toString.call(arr));
var tsObj = {
par1:"test1",
alFun : function() {
alert(this.par1);
console.log(this.par1);
return this.par1;
}
}
//alert(tsObj.alFun());
</script>
</head>
<body>
<div style="height: 100px; width: 100px; background: #ccc; background: url("http://r.ytrss.com/rs/js")" onclick="alert("hello")"></div>
""
<script type="text/javascript">
document.write(‘<script type="text/javascript" src="http://localhost:63342/jsXueXi/20140810/test4.js"><\/script>‘);
document.write(‘<script type="text/javascript" src="http://localhost:63342/jsXueXi/test3.js"><\/script>‘);
</script>
</body>
</html>
原文：http://www.cnblogs.com/king-bj/p/4312984.html