全选

//选中所有	function selectAllOrderFunc() {		var selectedAll = $("#all").attr("checked");		if(selectedAll == "checked") {			$("#inspectMaterialTrailerBodyLeft tr td input[type='checkbox']").each(function() {				$(this).attr("checked",true);			});		} else {			$("#inspectMaterialTrailerBodyLeft tr td input[type='checkbox']").each(function() {					$(this).removePRop("checked");			});		}	}
	<!-- 公司的写法，全选， -->						<th style="width:80px;" rowspan = "2" class="checkBox">							<input type="checkBox" name='selectColumnAll' >						</th>
//全选$("#selectAll").click(function(){$("[name=items]:checkbox").each(function(){$(this).attr("checked",true);});}); //全不选$("#unSelect").click(function(){$("[name=items]:checkbox").each(function(){$(this).attr("checked",false);});});