<p>设两个随机事件 <img src="https://learnfile.20230611.cn/learnAppQuestion/6e/49/6e49e6b74e746341f5383db3737c45e4.jpg" style="width: 100%;height: auto;"><img src="https://learnfile.20230611.cn/learnAppQuestion/41/43/414365c9749751154505056a2ae1ff4c.jpg" sty