長度超出規(guī)定長度，顯示省略號
設(shè)置class為displayPart，
設(shè)置自定義屬，displayLength可顯示長度（不包含...），雙字節(jié)字符，長度 *2，
復(fù)制代碼 代碼如下:
<script type="text/javascript">
$.fn.extend({
displayPart:function () {
var displayLength = 100;
displayLength = this.attr("displayLength") || displayLength;
var text = this.text();
if (!text) return "";
var result = "";
var count = 0;
for (var i = 0; i < displayLength; i++) {
var _char = text.charAt(i);
if (count >= displayLength) break;
if (/[^x00-xff]/.test(_char)) count++; //雙字節(jié)字符，//[u4e00-u9fa5]中文
result += _char;
count++;
}
if (result.length < text.length) {
result += "...";
}
this.text(result);
}
});
$(function () {
$(".displayPart").displayPart();
});
</script>
復(fù)制代碼 代碼如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta content="EditPlus">
<meta content="">
<meta content="">
<meta content="">
<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
</head>
<body>
<h2>hello world</h2>
<div>
hello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello world!!!
</div>
<hr>
<h2>hello</h2>
<div displayLength="40"> hello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhelloworldhello worldhello worldhello worldhello worldhello worldhello world
</div>
</body>
</html>
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