抽奖 受到启发。 支持框/线图，文本输入和橡皮擦。 安装 go get -u github.com/aca/tdraw 或从下载 用法 tdraw > draw.txt // tdraw has 4 mode. ESC: Box(+Undirected line, default) l: Directed line t: Text e: Erase CTRL-C/CTRL-D: exit // It might not work if terminal emulator consumes