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這是一個簡單的HTML/JavaScript文件:測試CSS顏色用JavaScript
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Javascript</title>
<script type="text/javascript" src="jquery.min.js"></script>
<style>
.red {
color:rgb(255,0,0);
}
</style>
</head>
<body>
<p class="red">The quick brown fox jumped over the lazy developer.</p>
<script type="text/javascript">
$("p").each (function (index,element) {
var color = $(element).css("color");
alert("color=" + color); //the alert says color=rgb(255,0,0)
if (color==rgb(255,0,0)) {
alert("color is rgb(255,0,0)");
//this alert never fires and the code never gets here.
$(element).css("color","#000000");
$(element).css("background-color","#ffff00");
}
});
</script>
</body>
</html>
爲什麼測試if (color==rgb(255,0,0)
失敗?是不是顏色rgb(255,0,0)
?如果測試表示color="red"
,似乎也無關緊要。
該代碼可以讓你回來爲元素的「色」的CSS屬性設置的實際值。所以如果你通過一個類設置顏色,你將無法得到你期望的顏色值 – daf
嘗試添加引號:'color ==「rgb(255,0,0)」' – j08691