1. `alt + insert` 快速声明get set 方法重写 构造方法等  2. `shift + ctrl` 上下移动当前行代码 3. 创建文件夹，Right click project->Project Structure->Project settings->Modules->select the folder where you want to create   3. [vscode 用法](https://blog.csdn.net/qq_42520962/article/details/120488403)