Js

用Jquery去左右的空格
<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script src="js/jquery-2.1.4.js"></script>
		<script type="text/javascript">
			;(function($){
				$.extend({
					deleteL :function(V){
						return( V || "").replace(/^s+/,"");//防止传经来的为未定义
					},
					deleteR :function(V){
						return( V || "").replace(/s+$/,"");
					}
				});
			})(jQuery);
			$(function(){
				$("#myDiv").val($.trim("   test  ") + "
" 
							+$.deleteL("    test  ") + "test" + "
" 
							+$.deleteR("  test  ")
						);
			});
		</script>
	</head>
	<body>
		<textarea id="myDiv" rows="20" cols="20"></textarea>
	</body>
</html>