这个时候在该 img 标签的 css 样式加上 

    1. pointer-events: none;<br />![image.png](https://cdn.nlark.com/yuque/0/2020/png/481834/1582271838163-b3a26cc6-9a4a-4244-81fe-9734c439d6f7.png#align=left&display=inline&height=81&name=image.png&originHeight=76&originWidth=195&size=3917&status=done&style=none&width=207)