jquery循环获取每个表格的ID

									
																					type="hidden"
											class="row_id"
											value="${row[10]}"
										/>
									
								

var value2;
			$(".row_id").each(function() {
						// $(".row_id").length
						value2 += $(this).val() + ",";
					});
			if ($.trim(value2)) {
				value2 = value2.replace("undefined", "");
				value2 = value2.substr(0, value2.length - 1);
			}
			alert(value2);

[img]http://dl.iteye.com/upload/attachment/0061/9088/a083060c-6d56-37b3-a4ca-631e3ac194c2.jpg[/img]