点击Popover外区域自动关闭Popover (popover close when click outside)

$(document).on('click', function (e) {
    $('[data-toggle="popover"],[data-original-title]').each(function () {
        //the 'is' for buttons that trigger popups
        //the 'has' for icons within a button that triggers a popup
        if (!$(this).is(e.target) && $(this).has(e.target).length === 0 && $('.popover').has(e.target).length === 0) {
            (($(this).popover('hide').data('bs.popover')||{}).inState||{}).click = false  // fix for BS 3.3.6
        }

    });
});