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keshe

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陈郁文 7 years ago
parent 9e6ecc7938
commit 350fc76fe1
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#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<conio.h>
#include <windows.h>
#define R 100
int Z;
struct player_data
{
int num;
char name[15];
double score;
}player[R];
/* 设置光标 */
void gotoxy(int x, int y)
{
HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE);
COORD pos;
pos.X = x;
pos.Y = y;
SetConsoleCursorPosition(handle, pos);
}
/* 初始化模块，将文件中的数据写入结构体后关闭文件 */
void beginning()
{
int A=20;
int i=0;
FILE *fp_beginning;
if((fp_beginning=fopen("player_data.txt","a+"))==NULL)
{
printf("File open error!\n");
exit(0);
}
while(A)
{
fread(&player[i],sizeof(player[0]),1,fp_beginning);
i++;
A--;
}
rewind(fp_beginning);
if(fclose(fp_beginning))
{
printf("Can not close the file!\n");
exit(0);
}
}
/* 主菜单 */
int menu()
{
int n;
printf("\n\n\n");
printf("\t\t\t\t\t\t-------------------------------\n");
printf("\t\t\t\t\t\t| 欢迎使用歌手比赛系统 |\n");
printf("\t\t\t\t\t\t| 1.输入选手数据 |\n");
printf("\t\t\t\t\t\t| 2.评委打分 |\n");
printf("\t\t\t\t\t\t| 3.成绩排序（按平均分） |\n");
printf("\t\t\t\t\t\t| 4.数据查询 |\n");
printf("\t\t\t\t\t\t| 5.追加学生数据 |\n");
printf("\t\t\t\t\t\t| 6.写入数据文件 |\n");
printf("\t\t\t\t\t\t| 7.退出程序 |\n");
printf("\t\t\t\t\t\t-------------------------------\n");
printf("\t\t\t\t\t\t 请输入你的选择 \n");
printf("\t\t\t\t\t\t 请优先输入选手数据再打分 \n");
scanf("%d",&n);
system("cls") ;
return n;
}
/* 求每一个选手的平均分 */
void all_aver()
{
int n,i,j;
FILE *fp;
if((fp=fopen("player_data.txt","a+"))==NULL)
{
printf("File open error!\n");
exit(0);
}
i=0; Z=0;
while(!feof(fp))
{
if(fread(&player[i], sizeof(player[0]),1,fp) == 1);
Z++;
i++;
}
if(fclose(fp))
{
printf("Can not close the file!\n");
exit(0);
}
printf("请以编号给选手打分\n");
int m;
printf("录入分数请按1，退出请按0\n");
scanf("%d",&m);
while(m==1)
{
printf("请输入你想要打分选手的编号\n");
scanf("%d",&n);
for(i=0;i<Z+1;i++)
{
if(n==player[i].num)
{
printf("%d %s %.lf\n",player[i].num,player[i].name,player[i].score);
printf("请为选手打分\n");
double scor[10];/*10个评委的成绩*/
double mark;/*最后得分*/
int max=-1;/*最高分*/
int min=101;/*最低分*/
int sum=0;/*10个评委的总分*/
for(j=0;j<10;j++)
{
printf("请依次输入第%d个评委的分数:",j+1);
scanf("%lf",&scor[j]);
sum=sum+scor[j];
}
for(j=0;j<10;j++)
{
if(scor[j]>max)
max=scor[j];
}
for(j=0;j<10;j++)
{
if(scor[j]<min)
min=scor[j];
}
mark=(sum-max-min)/8.0;
printf("该位选手的平均成绩为%.1f\n",mark);
player[i].score=mark;
}
else continue;
}
printf("录入分数请按1，退出请按0\n");
scanf("%d",&m);
}
FILE *fp_all_aver;
if((fp_all_aver=fopen("player_data.txt","w+"))==NULL)
{
printf("File open error!\n");
exit(0);
}
for(i=0;i<Z+1;i++)
{
fwrite(&player[i],sizeof(player[0]),1,fp_all_aver);
}
if(fclose(fp_all_aver))
{
printf("Can not close the file\n");
}
}
/* 输入选手数据 */
void w_player_data()
{
int i,j;
for(Z=0;Z<R;Z++)
{
printf("按1继续输入选手数据\n");
printf("按任意键退出\n");
scanf("%d",&j);
if(j!=1) break;
printf("编号： 姓名：\n");
scanf("%d%s",&player[Z].num, player[Z].name);
player[Z].score=0.0;
}
FILE *fp_w_player_data;
if((fp_w_player_data=fopen("player_data.txt","a+"))==NULL)
{ printf("File open error!\n");
exit(0);
}
for(i=0;i<Z;i++)
{
fwrite(&player[i],sizeof(player[0]),1,fp_w_player_data);
}
if(fclose(fp_w_player_data))
{
printf("Can not close the file\n");
exit(0);
}
}
/*将选手成绩进行排名,并输出选手信息*/
void rank()
{
int i,j;
FILE *fp;
if((fp=fopen("player_data.txt","a+"))==NULL)
{
printf("File open error!\n");
exit(0);
}
i=0; Z=0;
while(!feof(fp))
{
if(fread(&player[i], sizeof(player[0]),1,fp) == 1);
Z++;
i++;
}
if(fclose(fp))
{
printf("Can not close the file!\n");
exit(0);
}
struct player_data t;
for(i=0;i<Z+1;i++)
{
for(j=i+1;j<Z;j++)
{
if(player[j].score > player[i].score)
{
t=player[i];
player[i]=player[j];
player[j]=t;
}
}
}
printf("所有歌手成绩由高到低排列如下:\n");
i=1;
for(j=0;j<Z+1;j++)
{
if(player[j].num!=0)
printf("NO.%d名:%d %s %.lf\n",i,player[j].num,player[j].name,player[j].score);
i++;
}
}
void query_data()
{
int n,i,b,d;
char j[15];
FILE *fp;
if((fp=fopen("player_data.txt","a+"))==NULL)
{
printf("File open error!\n");
exit(0);
}
i=0; Z=0;
while(!feof(fp))
{
if(fread(&player[i], sizeof(player[0]),1,fp) == 1);
Z++;
i++;
}
if(fclose(fp))
{
printf("Can not close the file!\n");
exit(0);
}
printf("请输入所要查询的选手的其中一个信息\n");
printf("输入1以编号查询，输入2以姓名查询\n");
scanf("%d",&n);
switch(n)
{
case 1:
do{
printf("请输入所要查询选手的编号：\n");
scanf("%d",&b);
for(i=0;i<Z+1;i++)
{
if(b==player[i].num)
{
printf("选手的全部信息如下:\n");
printf("%d %s %.1lf\n",player[i].num,player[i].name,player[i].score);
}
}
printf("查询输入1，退出输入0");
scanf("%d",&d);
}
while(d==1); break;
case 2:
do
{
printf("请输入所要查询选手的姓名\n");
scanf("%s", j);
int key =0;
for(i=0; i<Z+1; i++)
{
if(strcmp(j, player[i].name)==0)
{
key = 1;
printf("\t\t\t\t\t\t选手的全部信息如下：\n");
printf("\t\t\t\t\t\t%d %s %.1lf\n",player[i].num,player[i].name,player[i].score);
break;
}
}
if(key == 0)
{
printf("你输入的选手信息有误\n");
}
printf("继续查询输入1，退出输入0\n");
scanf("%d",&d);
}
while(d==1); break;
default:printf("输入错误，自动退出\n"); break;
}
}
/* 追加选手数据 */
void add_data()
{
int n,i,j,k;
FILE *fp;
if((fp=fopen("player_data.txt","a+"))==NULL)
{
printf("File open error!\n");
exit(0);
}
i=0; Z=0;
while(!feof(fp))
{
if(fread(&player[i], sizeof(player[0]),1,fp) == 1);
Z++;
i++;
}
if(fclose(fp))
{
printf("Can not close the file!\n");
exit(0);
}
int choice=1;
while(choice==1)
{
printf("请输入所要追加选手的个数\n");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("追加的第%d位选手数据：\n",i+1);
printf("请输入选手相关数据：\n");
printf("编号 姓名\n");
scanf("%d%s",&player[Z+i+1].num, player[Z+i+1].name);
double scor[10];/*十个评委的分数*/
double mark;/*最后得分*/
double max=-1.0;/*最高分*/
double min=101.0;/*最低分*/
double sum=0.0;/*10个评委的总分*/
for(k=0;k<10;k++)
{
printf("请依次输入第%d个评委的分数",k+1);
scanf("%lf",&scor[k]);
sum=sum+scor[k];
}
for(k=0;k<10;k++)
{
if(scor[k]>max)
max=scor[k];
}
for(k=0;k<10;k++)
{
if(scor[k]<min)
min=scor[k];
}
mark=(sum-max-min)/8.0;
printf("\t\t\t\t\t\t该位选手的平均成绩为%.1lf\n",mark);
player[Z+i+1].score=mark;
}
Z+=n;
printf("继续追加请输入1,输入0退出\n");
scanf("%d",&choice);
}
if((fp=fopen("player_data.txt","w+"))==NULL)
{
printf("File open error!\n");
exit(0);
}
for(i=0; i<Z+1; i++)
fwrite(&player[i], sizeof(player[0]), 1, fp);
if(fclose(fp))
{
printf("Can not close the file!\n");
exit(0);
}
}
/* 将所有选手数据写入一个新建数据文件 */
void w_data_file()
{
int i;
FILE *fp;
if((fp=fopen("player_data.txt","a+"))==NULL)
{
printf("File open error!\n");
exit(0);
}
i=0; Z=0;
while(!feof(fp))
{
if(fread(&player[i], sizeof(player[0]),1,fp) == 1);
Z++;
i++;
}
if(fclose(fp))
{
printf("Can not close the file!\n");
exit(0);
}
FILE *fp_extra;
if((fp_extra=fopen("extra.txt","w+"))==NULL)
{
printf("File open error!\n");
exit(0);
}
for(i=0;i<Z+1;i++)
{
if(player[i].num!=0)
fprintf(fp_extra,"%d %s %lf\n",player[i].num,player[i].name,player[i].score);
}
if(fclose(fp_extra))
{
printf("Can not close the file!\n");
exit(0);
}
}
/* 主函数 */
int main(void)
{
printf("================================================欢迎使用歌手比赛系统===================================================\n");
printf("===================================================输入任意键继续======================================================\n");
getch();
system("cls");
beginning();
int op=1,OP;
while(op)
{
OP=menu();
switch(OP)
{
case 1:
{
printf("1.输入选手数据 \n");
printf("编号 姓名 \n");
w_player_data();
system("cls");
break;
}
case 2:
{
printf("\t\t\t\t\t\t 2.评委打分 \n");
printf("\t\t\t\t\t\t评分范围（1——10分） \n");
printf("\t\t\t\t\t\t 请输入打分分数 \n");
all_aver();
system("cls");
break;
}
case 3:
{
system("cls");
printf("\t\t\t\t\t\t3.成绩排序（按平均分） \n");
rank();
break;
}
case 4:
{
printf("\t\t\t\t\t\t4.数据查询 \n");
query_data();
system("cls");
break;
}
case 5:
{
printf("\t\t\t\t\t\t5.追加学生数据 \n");
add_data();
system("cls");
break;
}
case 6:
{
w_data_file();
printf("\t\t\t\t\t\t已经写入数据文件 \n");
break;
}
case 7:
{
printf("========================================================================================================================\n");
printf("\t\t\t\t\t\t\t感谢您的使用！\n");
printf("\t\t\t\t\t\t 正在退出歌手比赛系统！\n");
printf("\t\t\t\t\t\t\t按任意键退出\n");
printf("========================================================================================================================\n");
getch();
op=0;
break;
}
default:
printf("\t\t\t\t\t\t输入错误，请重新依据提示输入\n");
break;
}
}
}
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