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方法一：用CSS截斷字串：IE,FireFox，Opera ，Safari都相容
複製代碼 代碼如下:
.subLongText{
width:150px;
height:24px;
overflow:hidden;
white-space:nowrap;
text-overflow:ellipsis;
text-overflow: ellipsis;/* IE/Safari */
-ms-text-overflow: ellipsis;
-o-text-overflow: ellipsis;/* Opera */
-moz-binding: url("ellipsis.xml#ellipsis");/*FireFox*/
}
<span class="subLongText">任意長度文本</span>
方法二：用js截取
複製代碼 代碼如下:
<HTML>
<HEAD>
<TITLE>JQUERY 文本截取方法</TITLE>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="jquery-1.3.2.js"></script>
<script type="text/javascript">
$.fn.substr = function(length,content){
$(this).each(function(i,item){
var val=$(item).html();
if(!val) return;
if(val.length>length) {
val = val.substring(0,length);
val += content || "..."
$(item).html(val);
}
});
}
function subTdContent(){
$('td').substr(20);
}
</script>
</HEAD>
<BODY onload="javascript:subTdContent();">
<table style="border:1px solid #b3c0f5;" border="1">
<tr>
<td>我是代碼：$.fn.substr = function(l,c){ $(this).each(function(i,item)</td>
<td>以下兩種方式都可以解決textarea行高自動適應類容的高度</td>
<td>以下兩種方式都可以解決textarea行</td>
</tr>
</table>
</BODY> </HTML>
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