设置class为displayPart，
设置自定义属，displayLength可显示长度（不包含...），双字节字符，长度 *2，
代码如下:
$.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++; //双字节字符，//[u4e00-u9fa5]中文
result += _char;
count++;
}
if (result.length < text.length) {
result += "...";
}
this.text(result);
}
});
$(function () {
$(".displayPart").displayPart();
});
代码如下:
New Document
hello world
hello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello world!!!
hello
hello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhelloworldhello worldhello worldhello worldhello worldhello worldhello world