调试环境为TC2.0。运行这个程序需要tc提供的几个头文件。建议修改options菜单中的include目录项到tc的include的目录下(具体方法可以参见本书第一章的讲解)；或者把源程序拷贝到tc目录下运行。-Debugging environment for TC2.0. Run this program needs tc several header files. Recommendations to modify the include directory entry in the o