#define LEFT 0x4b00 #define RIGHT 0x4d00 #define SPACE 0x3920 #define ENTER 0x1c0d main() { struct point { int x, y; } a; /*定义a为结构体point类型*/ int key, key1; a.x = 40; /*设置光标的初始位置*/ a.y = 10; clrscr(); gotoxy(a.x, a.y); /*光标定位在指定位置*/...