函数高级写法

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<style type="text/css">
   #show{
    width:150px;
 height: 280px;
 margin:0 auto;
 background:#2c2c2c;
 color:red;
 text-align:center;
   }
</style>
<title>循环</title>
    <script type="text/javascript" >
function set(x){return(x+10)};
    var f = function(x){return set(x)*set(x);};
 alert(f(5));
 
 </script>
</head>
<body>
 <script type="text/javascript">
// 实现1到10 的累加
 function cal(){
  var sum = 0;
  for(var i=1;i<11;i++){
      sum += i;
  }
  return sum;
 }
 var t = cal();
 alert(t);
 </script>
</body>
</html>

posted @ 2014-01-15 13:52  birdlow  阅读(77)  评论(0)    收藏  举报