![复平面上的连通集](https://linux22.com/image/423061/%E5%A4%8D%E5%B9%B3%E9%9D%A2%E4%B8%8A%E7%9A%84%E8%BF%9E%E9%80%9A%E9%9B%86.png)
我已经在 matcha 中完成了这个,但我想让域更加拓扑化一些。
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