127d2803af93e93eb8d5f3b3a2aa0f46
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<!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd">
<html>
<head>
<base href="<%=basepath%>"/>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>回调函数</title>
<script type="text/javascript" src="js/jquery-1.7.1.min.js"></script>
<script type="text/javascript">
//返回值是一个函数格式
function a(callbackfunction){
console.log("这是parsent函数a");
var m=1;
var n=3;
return callbackfunction(m,n);
}
function b(m,n){
console.log("这是回调函数b");
return m+n;
}
$(function(){
var result=a(b);
//输出结果是：4
console.log("result="+result);
var c=function(){
return 3*4;
};
console.log("输出的结果是："+c());
});
</script>
</head>
<body>
</body>
</html>