几种画直线的方法

[{"title":"（ 6 个子文件 5KB ） 几种画直线的方法","children":[{"title":"画直线","children":[{"title":"画直线.dsw <span style='color:#111;'> 520B </span>","children":null,"spread":false},{"title":"画直线.cpp <span style='color:#111;'> 731B </span>","children":null,"spread":false},{"title":"画直线.dsp <span style='color:#111;'> 3.32KB </span>","children":null,"spread":false},{"title":"画直线.plg <span style='color:#111;'> 748B </span>","children":null,"spread":false},{"title":"画直线.ncb <span style='color:#111;'> 33.00KB </span>","children":null,"spread":false},{"title":"画直线.opt <span style='color:#111;'> 47.50KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]