JQuery设置和去除disabled属性的5种方法

//两种方法设置disabled属性
$('#areaSelect').attr("disabled",true);

$('#areaSelect').attr("disabled","disabled");

//三种方法移除disabled属性
$('#areaSelect').attr("disabled",false);
$('#areaSelect').removeAttr("disabled");
$('#areaSelect').attr("disabled","");