[预定义对象](%E9%A2%84%E5%AE%9A%E4%B9%89%E5%AF%B9%E8%B1%A1.md) [使用预定义pen](%E4%BD%BF%E7%94%A8%E9%A2%84%E5%AE%9A%E4%B9%89pen.md) [自定义画笔](%E8%87%AA%E5%AE%9A%E4%B9%89%E7%94%BB%E7%AC%94.md) [其它](%E5%85%B6%E5%AE%83.md)