longlong/1.c

#include<stdio.h>   //<2F><><EFBFBD><EFBFBD>Ԥ<EFBFBD><D4A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#include<stdlib.h>   //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EEBAAF><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>亯<EFBFBD><E4BAAF>
#include<string.h>    //<2F>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#include <time.h> //<2F>õ<EFBFBD><C3B5><EFBFBD>time<6D><65><EFBFBD><EFBFBD> 
int main()
{
	int num=0;
	while(1)
	{
		system("cls");
		load(); 
		printf("|----<2D>質<EFBFBD><E8B3AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ----\n");
		printf("\n ----------------------\n");
	   	printf("| [1] <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ¼<CFA2><C2BC>  |\n");
	   	printf("| [2] <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>ʾ  |\n");
	   	printf("| [3] <20><>ѯ<EFBFBD><D1AF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ  |\n");
	   	printf("| [4] <20>޸<EFBFBD><DEB8><EFBFBD>ί<EFBFBD><CEAF><EFBFBD><EFBFBD>      |\n");
	   	printf("| [5] <20><>ѯ<EFBFBD><D1AF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>      |\n");
	   	printf("| [6] <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>      |\n");
	   	printf("| [7] <20>˳<EFBFBD>ϵͳ          |\n");
	   	printf(" ----------------------\n");
	   	printf("<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>еIJ<EFBFBD><EFBFBD><EFBFBD>:");
		scanf("%d",&num);
		switch(num)//<2F>˵<EFBFBD> 
		{
			case 1 : info_sign();break;//¼<><C2BC> 
			case 2 : info_show();break;//<2F><>ʾ 
			case 3 : info_find();break;//<2F><><EFBFBD><EFBFBD> 
			case 4 : grade_modify();break;//<2F>޸<EFBFBD> 
			case 5 : find_order();break;
			case 6 : result_sort();break;
			case 7 : exit(0);
		}
	}
}
struct node{
	int id;//<2F><><EFBFBD><EFBFBD> 
	char name[20];//<2F><><EFBFBD><EFBFBD> 
	double score[11];//<2F>ɼ<EFBFBD> 
	double sum;//ƽ<><C6BD><EFBFBD><EFBFBD> 
	
}st[100],s;
int snum=0;
int load()       /********************************************<2A><><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD>ݵ<EFBFBD><DDB5>ڴ<EFBFBD> *************************************/ 
{
	snum=0;
	FILE *fp;  //<2F><><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ָ<EFBFBD><D6B8> 
	fp=fopen("info.txt","r");  //<2F>Զ<EFBFBD><D4B6>ķ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD> 
	if(fp==NULL) 
	{
		printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>info.dat<61>ļ<EFBFBD><C4BC><EFBFBD>ʧ<EFBFBD><CAA7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n");
	}
	else{
		while(!feof(fp)){//<2F><><EFBFBD><EFBFBD> <20>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD> 
			fread(&st[snum++],sizeof(struct node),1,fp);  //snum<75>Dz<EFBFBD><C7B2><EFBFBD>ѡ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF>ȡһ<C8A1><D2BB><EFBFBD><EFBFBD><EFBFBD>ݼ<EFBFBD>һ<EFBFBD>Ρ<EFBFBD>
		}
	}
     if(snum>0)
     snum--;
     else snum=0;
	fclose(fp); 
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>%d\n",snum);
	return 0;
}
int save()     /**********************************<2A><><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD>ļ<EFBFBD>******************************************/ 
{
	FILE *fp;
	int i,t=0;
	fp=fopen("info.txt","w");//<2F><>д<EFBFBD>ķ<EFBFBD>ʽ<EFBFBD>򿪲<EFBFBD><F2BFAAB2><EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD>Ϣ<EFBFBD>ļ<EFBFBD> 
		for(i=0;i<snum;i++){
		       fwrite(&st[i],sizeof(struct node),1,fp);
		 		//<2F><><EFBFBD>ν<EFBFBD><CEBD><EFBFBD><EFBFBD>ݶ<EFBFBD><DDB6><EFBFBD>st<73>ṹ<EFBFBD><E1B9B9> 
		}
	fclose(fp); 
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD>!\n");
	
	//printf("%d\n",snum);//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>Ϳγ<CDBF><CEB3><EFBFBD>Ŀ 
	return 0;
}
int info_sign()   /*************************<2A><><EFBFBD>Ӳ<EFBFBD><D3B2><EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD>Ϣ *********************/ 
{
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>%d\n",snum); 
	int i;
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD>:");
	scanf("%d",&st[snum].id);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD>:");
	scanf("%s",st[snum].name);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʮλ<EFBFBD><EFBFBD>ί<EFBFBD>ɼ<EFBFBD>:\n");
	st[snum].sum=0;
	double mi=0xffffff,ma=0;
	for( i=0;i<10;i++)
	{
		scanf("%lf",&st[snum].score[i]);
		if(mi>st[snum].score[i])
		{
			mi=st[snum].score[i];
		}
		if(ma<st[snum].score[i])
		{
			ma=st[snum].score[i];
		}
		st[snum].sum+=st[snum].score[i];
	}
	st[snum].sum=st[snum].sum-mi-ma;
	st[snum].sum/=8;//<2F><>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD> 
	snum++;
	save();//<2F><><EFBFBD>ڽṹ<DABD><E1B9B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><C2B5><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>±<EFBFBD><C2B1>溯<EFBFBD><E6BAAF> 
	getchar();getchar();
}