mounted里
$("#btnID").click(function(event) {
$("#divID").toggle();
$(document).one("click",
function() {
$("#divID").hide();
});
event.stopPropagation();
});
$("#divID").click(function(event) {
event.stopPropagation();
});
原文：http://www.cnblogs.com/thinkingthigh/p/7607540.html