1 SCRIPT LANGUAGE="JavaScript">
2 <!--
3 //出处:网上搜集
4 // Trim() , Ltrim() , RTrim()
5 String.prototype.Trim = function()
6 {
7 return this.replace(/(^\s*)|(\s*$)/g, "");
8 }
9 String.prototype.LTrim = function()
10 {
11 return this.replace(/(^\s*)/g, "");
12 }
13 String.prototype.RTrim = function()
14 {
15 return this.replace(/(\s*$)/g, "");
16 }
17 //-->
18 </SCRIPT>
19 <input type="text" value=" 前后都是空格 " id="space">
20 <input type="button" value="去前后空格" onclick="javascript:document.getElementById('space').value=document.getElementById('space').value.Trim();document.getElementById('space').select();">
21 <input type="button" value="去前空格" onclick="javascript:document.getElementById('space').value=document.getElementById('space').value.LTrim();document.getElementById('space').select();">
22 <input type="button" value="去后空格" onclick="javascript:document.getElementById('space').value=document.getElementById('space').value.RTrim();document.getElementById('space').select();">
23 <input type="button" value="还原" onclick="javascript:document.getElementById('space').value=' 前后都是空格 ';">
24 <a href="http://www.yaoasnsi.com" target="_blank">访问yaosansi.com</a>
