lytzpj/c4.cpp

#include"c3.cpp"
void modify()					//<2F>ɼ<EFBFBD><C9BC>޸<EFBFBD> 
{
	char st[30];
	double x,num;
	float nu;
	int k=0;
	system("cls");
	if((fp=fopen("a.txt","r"))==NULL)
	{
	printf("Cannot open the file!\n");
	return;
	}
	while(fscanf(fp,"%lf%s%f",&s[k].no,s[k].name,&s[k].cscore)!=EOF)
	{
	k++;
	}
	fclose(fp);

	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD><EFBFBD>޸ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2<EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޸ģ<EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n");
	scanf("%lf",&x);
	if(x==1)
	{
		printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޸ijɼ<EFBFBD><EFBFBD>˵<EFBFBD>ѧ<EFBFBD>ţ<EFBFBD>");
		scanf("%lf",&num);
		for(int i=0;i<k;i++)
		if(num==s[i].no)
		{
			printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޸ĵijɼ<EFBFBD><EFBFBD><EFBFBD>\n");
			scanf("%f",&nu);
			s[i].cscore=nu;
			fp=fopen("a.txt","w");
			for(i=0;i<k;i++)	
			fprintf(fp,"%.0lf  %s  %.1f\n",s[i].no,s[i].name,s[i].cscore);
			fclose(fp);
			printf("<EFBFBD>޸ijɹ<EFBFBD>\n");
			return;
		}
		printf("û<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>\n");
		return;
	}
		if(x==2)
		{	
			printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޸ijɼ<EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
		scanf("%s",st);
		for(int i=0;i<k;i++)
		if(strcmp(s[i].name,st)==0)
			{
				printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޸ĵijɼ<EFBFBD><EFBFBD><EFBFBD>\n");
				scanf("%f",&nu);
				s[i].cscore=nu;
				fp=fopen("a.txt","w");
				for(i=0;i<k;i++)
				fprintf(fp,"%.0lf  %s  %.1f\n",s[i].no,s[i].name,s[i].cscore);
				fclose(fp);
				printf("<EFBFBD>޸ijɹ<EFBFBD>\n");
				return;
			}	
		printf("û<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>\n");
		return;
		}
		}