功能：

$(function() {
    $.fn.click_inout = function(clickin_handler, clickout_handler) {
        var item = this;
        var is_me = false;
        item.click(function(event) {
            clickin_handler(event);
            is_me = true;
        });
        $(document).click(function(event) {
            if (is_me) {
                is_me = false;
            } else {
                clickout_handler(event);
            }
        });
        return this;
    }
});

用法：

this.input = $('<input>')
    .click_inout(
        function(event) { me.ShowTree(event); },
        function() { me.Hide(); }
    )
    .appendTo(this.node);

功能非常简单：

ShowTree: function(event) {
    this.data_span.show();
}
Hide: function() {
    this.data_span.hide();
}

这对我有用

$("body").mouseup(function(e) {
    var subject = $(".main-menu");
    if(e.target.id != subject.attr('id') && !subject.has(e.target).length) {
        $('.sub-menu').hide();
    }
});

试试这个：

$('html').click(function(e) {
  if($(e.target).parents('#menuscontainer').length == 0) {
    $('#menuscontainer').hide();
  }
});

https://jsfiddle.net/4cj4jxy0/

但请注意，如果单击事件无法到达html标记，则这将无法工作。（可能其他元素已停止传播（））。

最简单的方法：mouseleave（function（））

更多信息：https://www.w3schools.com/jquery/jquery_events.asp

外部点击插件！

用法：

$('.target-element').outsideClick(function(event){
    //code that fires when user clicks outside the element
    //event = the click event
    //$(this) = the '.target-element' that is firing this function 
}, '.excluded-element')

它的代码：

(function($) {

//when the user hits the escape key, it will trigger all outsideClick functions
$(document).on("keyup", function (e) {
    if (e.which == 27) $('body').click(); //escape key
});

//The actual plugin
$.fn.outsideClick = function(callback, exclusions) {
    var subject = this;

    //test if exclusions have been set
    var hasExclusions = typeof exclusions !== 'undefined';

    //switches click event with touch event if on a touch device
    var ClickOrTouchEvent = "ontouchend" in document ? "touchend" : "click";

    $('body').on(ClickOrTouchEvent, function(event) {
        //click target does not contain subject as a parent
        var clickedOutside = !$(event.target).closest(subject).length;

        //click target was on one of the excluded elements
        var clickedExclusion = $(event.target).closest(exclusions).length;

        var testSuccessful;

        if (hasExclusions) {
            testSuccessful = clickedOutside && !clickedExclusion;
        } else {
            testSuccessful = clickedOutside;
        }

        if(testSuccessful) {
            callback.call(subject, event);
        }
    });

    return this;
};

}(jQuery));

根据此答案改编https://stackoverflow.com/a/3028037/1611058

这对我来说很好。我不是专家。

$(document).click(function(event) {
  var $target = $(event.target);
  if(!$target.closest('#hamburger, a').length &&
  $('#hamburger, a').is(":visible")) {
    $('nav').slideToggle();
  }
});