第10节：一个用来学习C语言的模板程序

Data5，GuiWdData6，GuiWdData7，GuiWdData8，GuiWdData9。这10个窗口变量是给大家调试专用的，8位数码管可以切换显示10个窗口变量，最左边2位数码管代表窗口变量号，剩下6位数码管显示十进制的窗口变量数值，另外16个LED实时显示此数据的二进制格式。最左边2位数码管从“0-”到“9-”代表从第0个窗口变量到第9个窗口变量,也就是GuiWdData0依次到GuiWdData9。用S1和S5按键可以切换显示不同的窗口变量，按住S9不放可以观察到当前窗口变量的十六进制格式数据，松开S9按键后，又自动返回显示当前窗口变量的十进制数据。

该模板程序是基于坚鸿51学习板，现在跟大家分享这个程序，要让这10个窗口变量分别显示10,11,12,13,14,15,16,17,18,19这10个数,用S1按键可以切换显示从小往大的窗口变量号，用S5按键可以切换显示从大往小的窗口变量号。再强调一次，大家只需要关注主程序main函数的初始化区域就可以了，其它的代码请直接复制过来，不用理解。比如：

void main() //主程序

{

//...初始化区域

while(1)

{

}

}

详细的源代码如下：

#include "REG52.H"

#define const_voice_short 40

#define const_key_time1 20

#define const_key_time2 20

#define const_key_time3 20

void initial(void);

void delay_short(unsigned int uiDelayShort);

void dig_hc595_drive(unsigned char ucDigStatusTemp16_09,unsigned char ucDigStatusTemp08_01);

void display_drive(void);

void display_service(void);

void hc595_drive(unsigned char ucLedStatusTemp16_09,unsigned char ucLedStatusTemp08_01);

void T0_time(void);

void key_service(void);

void key_scan(void);

sbit beep_dr=P2^7;

sbit key_sr1=P0^0;

sbit key_sr2=P0^1;

sbit key_sr3=P0^2;

sbit key_gnd_dr=P0^4;

sbit led_dr=P3^5;

sbit dig_hc595_sh_dr=P2^0;

sbit dig_hc595_st_dr=P2^1;

sbit dig_hc595_ds_dr=P2^2;

sbit hc595_sh_dr=P2^3;

sbit hc595_st_dr=P2^4;

sbit hc595_ds_dr=P2^5;

unsigned char GucKeySec=0;

unsigned char GucKey3Sr=1;

unsigned int GuiVoiceCnt=0;

unsigned char GucVoiceStart=0;

unsigned char GucDigShow8;

unsigned char GucDigShow7;

unsigned char GucDigShow6;

unsigned char GucDigShow5;

unsigned char GucDigShow4;

unsigned char GucDigShow3;

unsigned char GucDigShow2;

unsigned char GucDigShow1;

unsigned char GucDisplayUpdate=1;

unsigned char GucWd=0;

unsigned int GuiWdData0=0;

unsigned int GuiWdData1=0;

unsigned int GuiWdData2=0;

unsigned int GuiWdData3=0;

unsigned int GuiWdData4=0;

unsigned int GuiWdData5=0;

unsigned int GuiWdData6=0;

unsigned int GuiWdData7=0;

unsigned int GuiWdData8=0;

unsigned int GuiWdData9=0;

code unsigned char dig_table[]=

{

0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00,0x40,

};

void main() //主程序

{

/*---C语言学习区域的开始---------------------------------------------------------------------------*/

GuiWdData0=10; //把10这个数值放到窗口变量0里面显示

GuiWdData1=11; //把11这个数值放到窗口变量1里面显示

GuiWdData2=12; //把12这个数值放到窗口变量2里面显示

GuiWdData3=13; //把13这个数值放到窗口变量3里面显示

GuiWdData4=14; //把14这个数值放到窗口变量4里面显示

GuiWdData5=15; //把15这个数值放到窗口变量5里面显示

GuiWdData6=16; //把16这个数值放到窗口变量6里面显示

GuiWdData7=17; //把17这个数值放到窗口变量7里面显示

GuiWdData8=18; //把18这个数值放到窗口变量8里面显示

GuiWdData9=19; //把19这个数值放到窗口变量9里面显示

/*---C语言学习区域的结束---------------------------------------------------------------------------*/

while(1)

{

initial();

key_service();

display_service();

}

}

void display_service(void)

{

static unsigned char SucLedStatus16_09=0;

static unsigned char SucLedStatus08_01=0;

static unsigned int SinWdDataTemp=0;

if(1==GucDisplayUpdate)

{

GucDisplayUpdate=0;

switch(GucWd)

{

case 0:

GucDigShow8=0;

SinWdDataTemp=GuiWdData0;

break;

case 1:

GucDigShow8=1;

SinWdDataTemp=GuiWdData1;

break;

case 2:

GucDigShow8=2;

SinWdDataTemp=GuiWdData2;

break;

case 3:

GucDigShow8=3;

SinWdDataTemp=GuiWdData3;

break;

case 4:

GucDigShow8=4;

SinWdDataTemp=GuiWdData4;

break;