js实现简单点赞操作
JavaScript实现点赞操作:(练手·初级),供大家参考,具体内容如下
前期准备:
① 导入jQuery文件;
② 导入bootstrap文件;
③ 点赞图片;
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>对span标签控制鼠标点击</title>
<script type="text/javascript" src="js/jquery-3.3.1.js" ></script>
<script type="text/javascript" src="js/bootstrap.min.js" ></script>
</head>
<body>
<h5 style="font-family: '微软雅黑';">图片文字并排摆放,文字局域图片腰部</h5>
<!--<span style="font-family: '微软雅黑';color: orangered;font-size: 10px; ">注意:有些浏览器不支持旋转的特性transform:正如你所看到的<br/></span>-->
<span id="goodSpan" onclick="sendGood()">
<img src="img/good.jpg" style="width: 25px; height: 25px;" />
</span>
[<span id="good"></span>]
<span id="badSpan" onclick="sendBad()">
<img src="img/good.jpg" style="width: 25px; height: 25px; transform: rotate(180deg);" />
</span>
[<span id="bad"></span>]
<script>
/*点赞的数量:*/
document.getElementById("good").innerText = "";
var good = document.getElementById("good").textContent;
document.getElementById("bad").innerText = "";
var bad = document.getElementById("bad").textContent;
window.onload = function(){
if (good == "") {
good = 0;
document.getElementById("good").innerText = 0;
}
if (bad == "") {
bad = 0;
document.getElementById("bad").innerText = 0;
}
}
/*点赞的数量:*/
function sendGood(){
good = parseInt(good) + 1;
document.getElementById("good").innerText = good;
document.getElementById("goodSpan").onclick = function(e){
e.preventDefault();
e.stopImmediatePropagation();
}
}
/*踩的数量:*/
function sendBad(){
bad = parseInt(bad) + 1;
document.getElementById("bad").innerText = bad;
document.getElementById("badSpan").onclick = function(e){
e.preventDefault();
e.stopImmediatePropagation();
}
}
</script>
</body>
</html>
结果如下:
下面是点赞图片:可直接拖动图片另存为保存到本地,再使用。
以上是 js实现简单点赞操作 的全部内容, 来源链接: utcz.com/z/336015.html