<p>设全集<img src="https://learnfile.20230611.cn/learnAppQuestion/57/43/57434fa80bc7f614e3404411c11d94ac.jpg" style="width: 100%;height: auto;">集合<img src="https://learnfile.20230611.cn/learnAppQuestion/a5/27/a52751b2a4945c4e6a9e8ed714d196f2.jpg" style=