1.首先在.cmd中定位系统中断表 2.在C中制定该中断的结构体 然后在使我们在.cmd文件中定义的表有以上属性 4.初始化该表（在.c文件中）使之能够为主程序所使用 -A First. Cmd positioning system interrupt Table 2. To develop the interrupt structure in C and then us. Cmd file defined in the table above property to initi