注意：使用stopPropagation是应该避免的，因为它会破坏 DOM 中的正常事件流。有关更多信息，请参阅这篇 CSS 技巧文章。

将单击事件附加到关闭窗口的文档正文。将单独的单击事件附加到容器，以停止传播到文档正文。

$(window).click(function() {
  //Hide the menus if visible
});

$('#menucontainer').click(function(event){
  event.stopPropagation();
});

如果您希望用户能够在元素内部单击并拖动，然后在元素外部释放鼠标，而不关闭元素：

      ...
      let lastMouseDownX = 0;
      let lastMouseDownY = 0;
      let lastMouseDownWasOutside = false;

      const mouseDownListener = (event: MouseEvent) => {
        lastMouseDownX = event.offsetX
        lastMouseDownY = event.offsetY
        lastMouseDownWasOutside = !$(event.target).closest(element).length
      }
      document.addEventListener('mousedown', mouseDownListener);

并在outsideClickListener：

const outsideClickListener = event => {
        const deltaX = event.offsetX - lastMouseDownX
        const deltaY = event.offsetY - lastMouseDownY
        const distSq = (deltaX * deltaX) + (deltaY * deltaY)
        const isDrag = distSq > 3
        const isDragException = isDrag && !lastMouseDownWasOutside

        if (!element.contains(event.target) && isVisible(element) && !isDragException) { // or use: event.target.closest(selector) === null
          element.style.display = 'none'
          removeClickListener()
          document.removeEventListener('mousedown', mouseDownListener); // Or add this line to removeClickListener()
        }
    }