jQuery-随机加载

Posted 2021-02-26

<!-- Google jQuery call -->
	<script type="text/javascript" src="http://www.google.com/jsapi"></script>
	<script type="text/javascript">
 	 // You may specify partial version numbers, such as "1" or "1.3",
 	 //  with the same result. Doing so will automatically load the 
  	//  latest version matching that partial revision pattern 
  	//  (i.e. both 1 and 1.3 would load 1.3.2 today).
  	google.load("jquery", "1.3.2");
 
  google.setOnLoadCallback(function() {
    // Place init code here instead of $(document).ready()
  });
</script>
 
<script type="text/javascript">
 
this.randomtip = function(){
	var length = $("#tips li").length;
	var ran = Math.floor(Math.random()*length) + 1;
	$("#tips li:nth-child(" + ran + ")").show();
};
 
$(document).ready(function(){	
	randomtip();
});
 
</script>		
 
<style type="text/css">
 
	#tips, #tips li{
		margin:0;
		padding:0;
		list-style:none;
	}
 
	#tips{
		width:250px;
		font-size:16px;
		line-height:120%;
	}
 
	#tips li{
		padding:20px;
		background:#e1e1e1;
		display:none; /* hide the items at first only */
	}
 
</style>
 
 
<ul id="tips">
	<li>... if you want to become a better coder you need to eat your vegetables?</li>
	<li>... it takes more time to code a web page then to make a pizza?</li>
	<li>... you should validate your code?</li>
	<li>... jQuery is your friend? For real!</li>
	<li>... no matter what some people claim, you can't learn CSS in 3 hours?</li>
</ul>