本参考资料用于Processing 3.0+。 如果你使用的是前一版本，请在使用软件帮助菜单内的参考资料。. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.
|描述|| The system variable mouseX always contains the current horizontal coordinate of the mouse.
Note that Processing can only track the mouse position when the pointer is over the current window. The default value of mouseX is 0, so 0 will be returned until the mouse moves in front of the sketch window. (This typically happens when a sketch is first run.) Once the mouse moves away from the window, mouseX will continue to report its most recent position.
Updated on October 2, 2018 05:02:10pm EDT