C语言之控制台读取上下左右方向键指令

首先，可以检测任何按键键值

// 首先，检测任何按键的代码 #include<stdio.h>#include<conio.h>int main(){        char ch;    while((ch=getch())!=0x1B) /* ESC to quit */{   printf("%d \n", ch);} } 

分别是上下左右键的键值。

其次，控制台读取方向键指令

方法一

//捕捉键值 #include<stdio.h> #include<conio.h> int main() {    int ch;   while( (ch=getch())!=0x1B ) /* Press ESC to quit... */   {      switch(ch)      {      case 0xE0:         switch(ch=getch())         {            case 72:  printf("UP\n"); break;            case 80:  printf("DOWN\n"); break;            case 75:  printf("LEFT\n"); break;            case 77:  printf("RIGHT\n"); break;            default:               break;         }         break;      default:         break;      }   }}

方法二

#include <stdio.h> #include <stdlib.h>   #include <conio.h>#include <windows.h>int main(){    char key;    while(1)    {        //    int t=1;        key=getch();        switch(key)        {        case -32:            key=getch();            switch(key)            {            case 72:                printf("UP\n");break;            case 80:                printf("DOWN\n");break;            case 75:                printf("LEFT\n");break;                case 77:                printf("RIGHT\n");break;            case -123:                                printf("F11\n");break;            case -122:                                printf("F12\n");break;            default:            //    printf("%x,%d,%c\n",t,t,t);break;                printf("NULL");break;            }            break;            default:            //    printf("%x,%d,%c\n",t,t,t);break;                printf("NULL");break;        }    }    return 0;}