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参考：https://stackoverflow.com/questions/11703093/how-to-dismiss-a-twitter-bootstrap-popover-by-clicking-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
            }
 
        });
    });