实现直线裁剪，是粱友栋算法啊！本方法需下载才能在TC上运行 -To achieve a straight line cutting, is粱友dong algorithm ah! This method can be downloaded to be run in the TC

该程序在C环境下运行，实现了梁友栋-Barsky 线段裁剪算法。-This process is running at the c circumstance,and it accomplished the youdongliang-Barsky clipping algorithm of line .