先看看效果吧。代码很简单，只是使用了javascript的setTimeout()函数。用到的html"复制代码 代码如下:<table> <td bgcolor="EE8F8F" height="45"> <img src="dg8.gif" src="dg8.gif" name="hr1"><img src="dg8.gif" name="hr2"><img src="dgc.gif" name="c"><img src="dg8.gif" name="mn1"><img src="dg8.gif" name="mn2"><img src="dgc.gif" name="c"><img src="dg8.gif" name="se1"><img src="dg8.gif" name="se2"> </td></table>然后是实现了不停的计时的javascript:复制代码 代码如下:<script language="javascript"><!-- dg0 = new Image();dg0.src = "dg0.gif"; dg1 = new Image();dg1.src = "dg1.gif"; dg2 = new Image();dg2.src = "dg2.gif"; dg3 = new Image();dg3.src = "dg3.gif"; dg4 = new Image();dg4.src = "dg4.gif"; dg5 = new Image();dg5.src = "dg5.gif"; dg6 = new Image();dg6.src = "dg6.gif"; dg7 = new Image();dg7.src = "dg7.gif"; dg8 = new Image();dg8.src = "dg8.gif"; dg9 = new Image();dg9.src = "dg9.gif"; dgc = new Image();dgc.src = "dgc.gif"; se_d=0; se_g=0; mn_g=0; mn_d=0; hr_g=0; hr_d=0; function dotimer(){ theTime=setTimeout('dotimer()',1000); //���ﲻ��ʹ��60����4����hr,mn��se //������ʹ�øߣ���λ4��ʾ document.hr1.src = 'dg'+hr_g+'.gif'; document.hr2.src = 'dg'+hr_d+'.gif'; document.mn1.src = 'dg'+mn_g+'.gif'; document.mn2.src = 'dg'+mn_d+'.gif'; document.se1.src = 'dg'+se_g+'.gif'; document.se2.src = 'dg'+se_d+'.gif'; if(se_d < 9) { se_d=se_d +1;} else { se_d=0; se_g=se_g+1; } if(se_g > 5) {se_g = 0; mn_d=mn_d +1 ; if(mn_d > 9) {mn_d =0; mn_g = mn_g+1;} if(mn_g >5) { mn_g=0; hr_d=hr_d+1; } if(hr_d >9) { hr_d=0; hr_g=hr_g+1; } } } dotimer(); //end // --></script>最后附上我用到的几个图片:

　　推荐阅读

　　JavaScript 关键字屏蔽实现函数

复制代码 代码如下:<script language="javascript1.2"><!-- function test() { if((a.b.value.indexOf ("***") == 0)||(a.b.value.indexOf ("****") == 0)){ alert(":)"); a.b.focus(); return false;} } // --></>>>详细阅读

本文标题：javascript 写的一个简单的timer

地址：http://www.17bianji.com/kaifa2/JS/28337.html

 1/2    1