File -> Settings -> Editor -> 1. 去掉对 Atomic Soft Tabs 的勾选; 2. 勾选 Soft Tabs; 3.Tab Length 值改为4 1. 2. 3. 相关文章: 2021-05-21 2021-09-23 2022-03-05 2021-09-02 2022-12-23 2022-01-01 2022-12-23 2022-01-11