java.awt.robot在java中属于偏黑科技。用于屏幕截图和操作鼠标键盘。是java库中自带的库，无需下载。这次就较为简单的实现一个截屏功能。如需要其他功能，可自行添加。(Java.awt.robot belongs to partial black technology in java. For screen capture and operation of mouse keyboard. Java library comes with the library, no need to download. This is a relatively simple implementation of a screenshot function. If you need other functions, you can add it yourself.)