js遍历checkbox获取数据

function GetCurrenetPoint() {
debugger
var currentTypes = "";
var display = $("#input_tbType").css("display");
if (display == "none") {
currentTypes = "bak";
}
else {
$("input[name='type']").each(function () { if ($(this).attr('checked')) { currentTypes += $(this).val() + "@"; } });
if (currentTypes != "") {
currentTypes = currentTypes.substring(0, currentTypes.length - 1);
}
else {
currentTypes = "bak";
}
}
return currentTypes;
}