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JQuery设置元素样式的几种方法
hanyufeng的博客
Original
981 people have browsed it

函数说明：

可以有两种写法

$('li')['css']('background','green');

$('li').css('background','red');

两种写法也都可以改写成回调函数形式

效果图：

j1.png

实例代码：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>JQuery设置元素样式的几种方法</title>
    <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
</head>
<body>
<ul>
    <li>HTML</li>
    <li>CSS</li>
    <li>JavaScript</li>
</ul>
<h3>一</h3>
<button>css()方式</button>
<button>css()回调函数方式</button>
<h3>二</h3>
<button>['css']方式</button>
<button>['css']回调函数方式</button>

<script>

    var btn1 = document.getElementsByTagName('button')[0];
 btn1.onclick = function () {
        // $('li')返回的是数组，且会自动遍历，不需要再写循环
 // 批量设置样式
 $('li').css('background','green');
 }

    var btn2 = document.getElementsByTagName('button')[1];
 btn2.onclick = function () {
        //回调方式
 $('li').css({
            'background':function () {
                return 'blue';
 }
        });

 }

    var btn3 = document.getElementsByTagName('button')[2];
 btn3.onclick = function () {
        $('li')['css']('background','yellow');
 }

    var btn4 = document.getElementsByTagName('button')[3];
 btn4.onclick = function () {
        $('li')['css']({
            'background':function () {
                return 'red';
 }
        });
 }
</script>
</body>
</html>


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