SVG在“填充:无"时检测Onclick事件.
问题描述：
当我使用"fill:black"创建svg rect时，将调用我的on_click事件处理程序.
When I create an svg rect with "fill: black", my on_click event handler gets called.
当我将"fill:black"替换为"fill:none"时，当我在矩形内部单击时，不会调用我的事件处理程序，而仅当我单击菜单项的 border 时才调用该事件处理程序直肠.
When I replace the "fill: black" with "fill: none", my event handler is NOT called when I click inside the rect, but only called when I click on the border of the rect.
问题:我需要更改什么，以便检测到单击矩形内 的单击事件?
Question: what do I need to change so that click events are detected for clicking inside the rectangle?