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? ???? ??? ??? ?? ??? ??? ???? ? ????.
E + F
? ??? ?? ???? ???? ?????.
E + F ?? ?? ???? F? ???? ??? ????, ? ??? ???? E ?? ?? ?? ?????.
E? F? ??? ?? ??? ??? ?? F? E? ?? ???? ???. ?? ?? ??? ????.
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://ask.php.cn/" />
<title>php中文網(wǎng)</title>
<style type="text/css">
li{color:blue}
.antzone+li{
color:red;
}
</style>
</head>
<body>
<ul>
<li>php中文網(wǎng)一</li>
<li class="antzone">php中文網(wǎng)二</li>
<li>php中文網(wǎng)三</li>
<li>php中文網(wǎng)四</li>
</ul>
</body>
</html>? ??? ??? antzone? ? ????. ?? ??? li ??? ??? ????? ?????.
