The example in this article describes the star rating function implemented in js. Share it with everyone for your reference, the details are as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>星星评分</title>
<script type="text/javascript">
function rate(obj,oEvent){
// 图片地址设置
var imgSrc = '../images/s0.gif'; //没有填色的星星
var imgSrc_2 = '../images/s1.gif'; //打分后有颜色的星星
if(obj.rateFlag) return;
var e = oEvent || window.event;
var target = e.target || e.srcElement;
var imgArray = obj.getElementsByTagName("img");
for(var i=0;i<imgArray.length;i++){
imgArray[i]._num = i;
imgArray[i].onclick=function(){
if(obj.rateFlag) return;
obj.rateFlag=true;
alert(this._num+1); //this._num+1这个数字写入到数据库中,作为评分的依据
};
}
if(target.tagName=="IMG"){
for(var j=0;j<imgArray.length;j++){
if(j<=target._num){
imgArray[j].src=imgSrc_2;
} else {
imgArray[j].src=imgSrc;
}
}
} else {
for(var k=0;k<imgArray.length;k++){
imgArray[k].src=imgSrc;
}
}
}
</script>
</head>
<body>
<p onmouseover="rate(this,event)">
<img src="../images/s0.gif" title="很烂" />
<img src="../images/s0.gif" title="一般" />
<img src="../images/s0.gif" title="还好" />
<img src="../images/s0.gif" title="较好" />
<img src="../images/s0.gif" title="很好" />
</p>
</body>
</html>
I hope this article will be helpful to everyone in JavaScript programming.
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