2.11. 橡皮擦和画笔不起作用
您选择了剪贴板笔刷,剪贴板是空的。
图 4.7. 空剪贴板笔刷
How to tell: You are trying to use a brush or the eraser and nothing is happening.
How to fix: Check the Brush Dialog to see which brush is currently in use. If it is the Clipboard Brush and it shows an empty rectangle then select a different brush to use.