C語言實(shí)現(xiàn)查表跳轉(zhuǎn)程序.可以采用狀態(tài)機(jī)如
switch(state)
{
    case 1:state_fuc();break;
    case 2:state_fuc();break; 
.........
也可以用if ...else if ......else .....
除了用switch或if判斷，還有匯編那種goto
下面這種采用函數(shù)指針的辦法.如下
void(*key_list[16])()={  
                key_zero,  
                key_one,  
                key_two,  
                key_three,  
                key_four,  
                key_five,  
                key_six,  
                key_seven,   (這些是函數(shù)名）  
                key_eight,  
                key_nine,  
                key_ten,  
                key_eleven,  
                key_twelve,  
                key_thirteen,  
                key_fourteen,  
                key_fifteen  
};  
void main()  
{          
        void(*fp)();  
        delay(10);  
        write_com(0x01);  
        delay(15);  
        write_com(0xc);  
        lcd_home();          
        while(1)          
        {  
                        if(key_press())  
                                {        delay(100);  
                                        fp=key_list[key_scan()];  
                                        (*fp)();  
                                        delay(1200);  
                                }  
                          

        }  
//----------------------------------
                                        fp=key_list[key_scan()];   直接把指針傳給fp
                                        (*fp)();   調(diào)用