嵌入式培训机构四个月实训课程笔记（完整版）-C语言综合练习-歌词解析器（物联技术666）

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歌词解析器：做一个如下图的歌词解析器

===================== 代码实现 ================

//--------------------------------main.c

#include <stdio.h>

#include <windows.h>

#include "link.h"

int main()

{

?????? LRC_INFO *pf;

?????? FILE *fd;

?????? int size,rsize,t,num1=0;

?????? char *pbuffer=NULL,*p;

?????? char a[4][100]={{""},{""},{""},{""}};

??????

?????? int hour=0,minute=0,second=0;

?????? unsigned int num=0;

??????

?????? LRC_INFO *head=NULL;

?????? if( (fd = fopen("简单爱.lrc","rb")) == NULL )//当前路径

?????? {

???????????? printf("No Lrc File!\n");??????????? ???????????? //打开歌词文件

?????? }

?????? else

?????? {

???????????? fseek(fd,0,2);

???????????? size = ftell(fd);

???????????? rewind(fd);

????????????

???????????? pbuffer = (char *)malloc(size+1);

???????????? rsize = fread(pbuffer,1,size,fd); ?????? //将全部歌词读到缓冲区

???????????? fclose(fd);

???????????? *(pbuffer+rsize)='\0';

?????? }

?????? p=Message_Song(pbuffer);

?????? head=Message_Song_Play(head,p);

?????? ShellExecute( NULL, NULL, "TTPlayer.exe","简单爱.mp3",NULL,1);?? //执行千千静?????????

/*

第一个值为背景色，第二个值为前景色：

0 = 黑?? 8 = 灰

1 = 蓝?? 9 = 淡蓝

2 = 绿?? A = 淡绿

3 = 湖蓝 B = 淡浅绿

4 = 红?? C = 淡红

5 = 紫?? D = 淡紫

6 = 黄?? E = 淡黄

7 = 白?? F = 亮白

*/

//设置接下来终端显示文本的背景色和文本颜色??????

?????? while(1)

?????? {

???????????? system("cls");

???????????? SetText_Color(0x0f);

???????????? p=Message_Song(pbuffer);

???????????? GoToXY(25,5);

???????????? printf("时间：%02d:%02d:%02d\n\n\n",hour,minute,second);

???????????? GoToXY(20,8);

???????????? SetText_Color(0x0f);

???????????? printf("%s\n",a[3]);

???????????? GoToXY(20,9);

???????????? printf("%s\n",a[2]);

???????????? GoToXY(20,10);

???????????? printf("%s\n",a[1]);

???????????? GoToXY(20,11);

???????????? SetText_Color(0x0c);

???????????? printf("%s\n",a[0]);

???????????? Sleep(1000);

???????????? if(++second >= 60)

???????????? {

??????????????????? second = 0;

??????????????????? if(++minute >= 60)

??????????????????? {

????????????????????????? minute = 0;

????????????????????????? if(++hour >= 24)

????????????????????????? {

???????????????????????????????? hour = 0;

????????????????????????? }

??????????????????? }

???????????? }????

?????? ?????? t=hour*60*60+minute*60+second;

???????????? if (((head->Time)/100)==t)

???????????? {

??????????????????? pf=head;

??????????????????? num1++;

??????????????????? if (num1<4)

??????????????????? {

????????????????????????? if (num1==1)

????????????????????????? ?????? strcpy(a[0],head->LrcText);

????????????????????????? if(num1==2)

????????????????????????? {

???????????????????????????????? strcpy(a[1],a[0]);

????????????????????????? ?????? strcpy(a[0],head->LrcText);

????????????????????????? }

????????????????????????? if (num1==3)

????????????????????????? {

???????????????????????????????? strcpy(a[2],a[1]);

???????????????????????????????? strcpy(a[1],a[0]);

????????????????????????? ?????? strcpy(a[0],head->LrcText);

????????????????????????? }

??????????????????? }

??????????????????? else

??????????????????? {

????????????????????????? strcpy(a[3],a[2]);

????????????????????????? strcpy(a[2],a[1]);

????????????????????????? strcpy(a[1],a[0]);

??????????????????? ?????? strcpy(a[0],head->LrcText);

??????????????????? }

??????????????????? head=pf;

??????????????????? head=head->next;

??????????????????? free(pf);

???????????? }

???????????? if (head==NULL)

???????????? {

???????????? ?????? free(pbuffer);

??????????????????? break;

???????????? }

?????? }??????????????????????????????

?????? free(pbuffer);

?????? return 0;

}

//-------------------------link.c

#include <stdio.h>

#include <windows.h>

#include <string.h>

#include "link.h"

/*

终端打印控制子程序，获取光标位置，将光标移到到指定位置

*/

//获取当前光标位置，并存放到变量 x,y中

void whereXY(int *x,int *y)

{

?????? HANDLE h1;

?????? CONSOLE_SCREEN_BUFFER_INFO scrInfo;

h1=GetStdHandle(STD_OUTPUT_HANDLE); ??????

GetConsoleScreenBufferInfo(h1,&scrInfo); ??????

?????? *x=scrInfo.dwCursorPosition.X;

?????? *y=scrInfo.dwCursorPosition.Y;

}

//跳转到光标指定位置

void GoToXY(int x,int y)

{

?????? HANDLE h1;

?????? COORD pos;

?????? pos.X=x;

?????? pos.Y=y;

h1=GetStdHandle(STD_OUTPUT_HANDLE);

?????? SetConsoleCursorPosition(h1,pos);

}

/*

第一个值为背景色，第二个值为前景色：

0 = 黑?? 8 = 灰

1 = 蓝?? 9 = 淡蓝

2 = 绿?? A = 淡绿

3 = 湖蓝 B = 淡浅绿

4 = 红?? C = 淡红

5 = 紫?? D = 淡紫

6 = 黄?? E = 淡黄

7 = 白?? F = 亮白

*/

//设置接下来终端显示文本的背景色和文本颜色

void SetText_Color(int color)

{

?????? HANDLE hStdout;

?????? hStdout = GetStdHandle(STD_OUTPUT_HANDLE);

??? SetConsoleTextAttribute(hStdout,color);

}

//----------------------------------------

//char * Message_Song(char* pbuffer)

//参数：pbuffer:歌曲内存的首地址

//作用：显示歌曲的信息

//返回：返回歌曲开始的首地址

//----------------------------------------

char * Message_Song(char* pbuffer)

{

?????? char *ph,*plf,*plb;

?????? char num[100];

?????? ph=pbuffer;

?????? if(strstr(pbuffer,"ti:")!=0)

?????? {

???????????? memset(num,0,100);

???????????? plf=strstr(pbuffer,"ti:");

???????????? plb=strstr(plf,"]");

???????????? strncpy(num,plf,plb-plf);

???????????? printf("%s\n",num);

?????? }

?????? if(strstr(pbuffer,"ar:")!=0)

?????? {

???????????? memset(num,0,100);

???????????? plf=strstr(pbuffer,"ar:");

???????????? plb=strstr(plf,"]");

???????????? strncpy(num,plf,plb-plf);

???????????? printf("%s\n",num);

?????? }

?????? if(strstr(pbuffer,"al:")!=0)

?????? {

???????????? memset(num,0,100);

???????????? plf=strstr(pbuffer,"al:");

???????????? plb=strstr(plf,"]");

???????????? strncpy(num,plf,plb-plf);

???????????? printf("%s\n",num);

?????? }

?????? if (strstr(pbuffer,"by:")!=0)

?????? {

???????????? memset(num,0,100);

???????????? plf=strstr(pbuffer,"by:");

???????????? plb=strstr(plf,"]");

???????????? strncpy(num,plf,plb-plf);

???????????? printf("%s\n",num);

???????????? ph=plb+2;

?????? }

?????? return ph;

}

//----------------------------------------

//LRC_INFO * insert(LRC_INFO *head,char *txt,int n)

//参数：head:链表首地址，txt新结构体的文本输入，n新结构体的数字输入

//作用：建立有序链表

//返回：返回链表的首地址

//----------------------------------------

LRC_INFO *insert(LRC_INFO *head,char *txt,int n)

{

?????? LRC_INFO *pc,*pf,*pb;

?????? char c[200]="0";

?????? pf=pb=head;

?????? pc=(LRC_INFO *)malloc(sizeof(LRC_INFO));

?????? strcpy(pc->LrcText,txt);

?????? pc->Time=n;

?????? if(head==NULL)

?????? {

???????????? head=pc;

???????????? head->next=NULL;

?????? }

?????? else

?????? {

???????????? while((pc->Time > pb->Time)&&pb->next!=NULL)

???????????? {

??????????????????? pf=pb;

??????????????????? pb=pf->next;

???????????? }

???????????? if (pb->next==NULL&&head->next!=NULL)

???????????? {

??????????????????? if (pc->Time > pb->Time)

??????????????????? {

????????????????????????? pb->next=pc;

????????????????????????? pc->next=NULL;

??????????????????? }

??????????????????? else

??????????????????? {

????????????????????????? pf->next=pc;

????????????????????????? pc->next=pb;

??????????????????? }

???????????? }

???????????? else if (pb->next==NULL&&head->next==NULL)

???????????? {

??????????????????? if (pc->Time >= head->Time)

??????????????????? {

????????????????????????? head->next=pc;

????????????????????????? pc->next=NULL;

??????????????????? }

??????????????????? else

??????????????????? {????????????????????????

????????????????????????? pc->next=head;

????????????????????????? head=pc;

??????????????????? }?????????????????

???????????? }

???????????? else

???????????? {

??????????????????? if (pb==head)

??????????????????? {

????????????????????????? head=pc;

????????????????????????? pc->next=pb;

??????????????????? }

??????????????????? else

??????????????????? {

????????????????????????? pf->next=pc;

????????????????????????? pc->next=pb;

??????????????????? }

???????????? }

?????? }

?????? return head;

}

//----------------------------------------

//LRC_INFO * Message_Song_Play(LRC_INFO *head,char *p)

//参数：head:链表首地址，p：歌词的开始地址

//作用：把歌词有序的压入链表，以时间顺序

//返回：返回链表的首地址

//----------------------------------------

LRC_INFO *Message_Song_Play(LRC_INFO *head,char *p)

{

?????? char *pb,*end;

?????? int n;

?????? p=strtok(p,"\n");?

?????? while (p!=NULL)

?????? {

???????????? pb=p;

???????????? end=strrchr(pb,']');

???????????? while(strchr(pb,'[')!=NULL)

???????????? {

??????????????????? pb=strchr(pb,'[');

??????????????????? n=(*(pb+1)-'0')*10*60*100+(*(pb+2)-'0')*60*100+(*(pb+4)-'0')*10*100+(*(pb+5)-'0')*100+(*(pb+7)-'0')*10+(*(pb+8)-'0');

??????????????????? pb++;

??????????????????? head=insert(head,end+1,n);

???????????? }

???????????? p=strtok(NULL,"\n");

?????? }

?????? return head;

}

//---------------------------------------link.h

#ifndef __LINK_H__

#define __LINK_H__

typedef int s32_t;

typedef unsigned int u32_t;

typedef unsigned short u16_t;

typedef unsigned char u8_t;

typedef struct _LRC_INFO

{

?????? u32_t Time;

?????? char LrcText[100];

?????? struct _LRC_INFO *next;

} LRC_INFO;

//extern LRC_INFO *InsertList( LRC_INFO * head, LRC_INFO *pi);//存入链表，head链表的头地址,pi插入的头地址；

//extern LRC_INFO *GetLrcInfo(char *LrcFile, u32_t FileSize);

//extern void print( LRC_INFO * head);

extern char* Message_Song(char *Lrc_Buffer);//解析歌曲的作者、歌曲名、专辑、歌词制作信息取出

extern LRC_INFO *insert(LRC_INFO *head,char *txt,int n);

extern LRC_INFO *Message_Song_Play(LRC_INFO *head,LRC_INFO *p);

//extern LRC_INFO * seach(LRC_INFO *head,int t);

extern void whereXY(int *x,int *y) ;

extern void GoToXY(int x,int y);

extern void SetText_Color(int color) ;

#endif

/*

?????? #if 1?????

?????? system("color 0 0");//非法操作，提示正确操作说明

?????? system("color 47");//背景红，前景白

?????? SetText_Color(0x47);//文字背景红，前景白

?????? system("pause");

?????? system("cls");????? //清屏

?????? #endif ?

?????? //if( (fd = fopen("D:\\study_test\\clanguage\\lrc_display_demo\\LRC\\简单爱.lrc","rb")) == NULL )//全路径

???????????? //if( (fd = fopen("./LRC/简单爱.lrc","rb")) == NULL )//相对路径*/

//--------------------------------------------------

??更多配套资料CSDN地址：点赞+关注，功德无量。更多交流+：wulianjishu666

物联技术666_嵌入式C语言开发,嵌入式硬件,嵌入式培训笔记-CSDN博客物联技术666擅长嵌入式C语言开发,嵌入式硬件,嵌入式培训笔记,等方面的知识,物联技术666关注机器学习,arm开发,物联网,嵌入式硬件,单片机领域.https://blog.csdn.net/weixin_39804904?type=blog