C语言歌曲信息管理系统

学院：计算机学院

专业：网络工程

班级：***********

姓名：**********

学号：***********

课题：歌曲信息管理系统指导老师：***********

#include

#include

#include

#define N 10

struct song

{char name_1[20]; /*the song name*/

char name_2[20]; /*the writer name*/

char name_3[20]; /*the singer name*/

char album[20]; /*the ablum*/

char date[20]; /*the date*/

}Song[N]; /*每个数组元素对应一首歌曲信息*/

void back() /*选择继续浏览还是返回主菜单*/

{int w,n;

void menu();

void browse();

n=0;

do

{printf("What do you want to do ?\\t n\n1.browse all now\t 2.back: [ ]\b\b"); scanf("%d",&w);

if(w<1||w>2)

{n=1;

printf("Input Error Please choice again\n\n\n\n");

}

else n=0;}

while(n==1);

switch(w)

{case 1:browse();break;

case 2:menu();break;}

}

void input(int i)

{

scanf("%s",Song[i].name_1);

scanf("%s",Song[i].name_2);

scanf("%s",Song[i].name_3);

scanf("%s",Song[i].album);

scanf("%s",Song[i].date);

}

/******************输入模块*****************/

void enter()

{FILE *fp;

int i,n;

n=N;

printf("How many songs(0-%d)?",N-1);

for(i=0;i

printf("\nNow please enter %dth song information:\n",i+1);

scanf("%s %s %s %s %s",Song[i].name_1,Song[i].name_2,Song[i].name_3,Song[i].album,Song[i ].date);

}

if((fp=fopen("d:/music.txt","a"))==NULL)

{printf("\n Cannot open file\n");

}

for(i=0;i

{

fprintf(fp,"%s %s %s %s %s\n",Song[i].name_1,Song[i].name_2,Song[i].name_3,Song[i].album,S ong[i].date);

}

fclose(fp);

back();

}

int load()

{FILE *fp;

int i;

if((fp=fopen("d:/music.txt","r"))==NULL)

printf("\nCannot open file\n");

for(i=0;!feof(fp);i++)

fscanf(fp,"%s %s %s %s %s",Song[i].name_1,Song[i].name_2,Song[i].name_3,Song[i].album,So ng[i].date);

return(i-1); /* 返回记录个数*/

}

void print(int i)

{printf("%dth song:",i+1);

printf("%s %s %s %s %s\n",Song[i].name_1,Song[i].name_2,Song[i].name_3,Song[i].album,Son g[i].date);

}

/******************浏览模块*****************/

void browse()

{

int i,n;

n=load();

for(i=0;i

{print(i);

puts("\n");}

back();

}

/******************查找模块*****************/

void search()

{char s[20];

int i,n,w,a;

void print();

void getch();

w=0;

n=load();

do

{

printf("Please input the song's name you want:"); scanf("%s",s);

for(i=0;i

if(strcmp(s,Song[i].name_1)==0)

{print(i);w=1;}

if(w==0)

{printf("\nThis song is not existed\n");

}

printf("do you want to continue?\n");

printf("1.yes\n2.no\n");

scanf("%d",&a);

getch();}

while(a==1);

back();}

/******************删除模块******************/

void del()

{FILE *fp;

int i,j,n,flag,a;

char name[20];

n=load();

printf("\n original songs:\n");

for(i=0;i

printf(" %dth:%s ",i+1,Song[i].name_1);

n=i;

do

{

printf("\n input song name deleted:\n"); scanf("%s",name);

for(flag=1,i=0;flag&&i

{if(strcmp(Song[i].name_1,name)==0) {for(j=i;j

{strcpy(Song[j].name_1,Song[j+1].name_1); strcpy(Song[j].name_2,Song[j+1].name_2); strcpy(Song[j].name_3,Song[j+1].name_3); strcpy(Song[j].album,Song[j+1].album); strcpy(Song[j].date,Song[j+1].date);

}

flag=0;

}

}

if(!flag)

n=n-1;

else

printf("\n not found\n");

printf("Now the songs are:\n\n");

if((fp=fopen("d:/music.txt","w"))==NULL) {printf("\n Cannot open file\n");

}

for(i=0;i

fwrite(&Song[i],sizeof(struct song),1,fp); fclose(fp);

fp=fopen("d:/music.txt","r");

for(i=0;i

print(i);

fclose(fp);

puts("\n");

printf("do you want to continue?\n"); printf("1.yes\n2.no\n");

scanf("%d",&a);

getch();}

while(a==1);

back();}

/*******************按作者显示模块*******************/

void list()

{struct song s[1];

int i,j,n;

n=load();

for(i=0;i

for(j=i+1;j

{

if((strcmp(Song[i].name_2,Song[j].name_2))>0)

{s[0]=Song[i];

Song[i]=Song[j];

Song[j]=s[0];

}

}

for(i=0;i

{printf("%dth song:",i+1);

printf("%s %s %s %s %s\n",Song[i].name_1,Song[i].name_2,Song[i].name_3,Song[i].album,Son g[i].date);

}

back();

}

/****************************主界面***************************/

void menu()

{int n,w;

do

{ puts("\n");

puts("\t\t*********************MENU*********************\n\n");

puts("\t\t\t\t 1.Enter new song");

puts("\t\t\t\t 2.Browse all");

puts("\t\t\t\t 3.Search");

puts("\t\t\t\t 4.Delete");

puts("\t\t\t\t 5.List by singer");

puts("\t\t\t\t 6.Exit");

puts("\n\n\t\t******************************************\n");

printf("Choice your number(1-6): [ ]\b\b");

scanf("%d",&n);

if(n<1||n>6) /*对所选数字进行判断*/

{w=1;

printf("Input Error Please choice agin");

}

else w=0;}

while(w==1);

switch(n)

{case 1:enter();break;

case 2:browse();break;

case 3:search();break;/*search the information by song's name*/ case 4:del();break;

case 5:list();break;/*find by writer*/

case 6:exit(0);}

}

/*******主函数********/

main()

{ menu();

}