实验7

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
const int N = 10;
typedef struct student {
	long int id;
	char name[20];
	float objective;	
	float subjective;	
	float sum;
	char level[10];	
}STU; 


void input(STU s[], int n);
void output(STU s[], int n);
void process(STU s[], int n);

int main() {
	STU stu[N];
	
	printf("录入%d个考生信息: 准考证号，姓名，客观题得分(<=40)，操作题得分(<=60)\n", N); 
	input(stu, N);
	
	printf("\n对考生信息进行处理: 计算总分，确定等级\n");
	process(stu, N);
	
	printf("\n打印考生完整信息: 准考证号，姓名，客观题得分，操作题得分，总分，等级\n");
	output(stu, N); 
	
	system("pause");
	return 0;
} 


void input(STU s[], int n) {
	int i;
	FILE *fp;
	fp=fopen("examinee.txt","r");
	if(!fp)
	exit(0);
	for(i=0;i<n;i++)
	fscanf(fp, " %d %s %f %f\n",&s[i].id, s[i].name, &s[i].objective, &s[i].subjective);
	fclose(fp);
	
	 
}


void output(STU s[], int n) {
	FILE *fh1;
	int i;
	for(i=0;i<n;i++)
	printf("                   %d\t %s\t   %.2f\t  %.2f\t  %.2f\t   %s\n",s[i].id,s[i].name,s[i].objective,s[i].subjective,s[i].sum,s[i].level);
	fh1=fopen("result.txt","w");
	if(fh1==0)
	exit(0);
	while(!feof(fh1)){
		for(i=0;i<n;i++)
		fprintf(fh1,"%d\t %s\t %.2f\t %.2f\t %.2f\t %s\n",s[i].id,s[i].name,s[i].objective,s[i].subjective,s[i].sum,s[i].level);
		fclose(fh1);
	}
}


void process(STU s[], int n) {
	int i,j;
	STU k;
	for(i=0;i<N;i++)
	s[i].sum=s[i].objective+s[i].subjective;
	for(i=0;i<n;i++)
	for(j=0;j<n;j++)
	if(s[j].sum<s[j+1].sum){
		k=s[j];
		s[j]=s[j+1];
		s[j+1]=k;
	}
	
	strcpy(s[0].level,"优秀");
	for(i=1;i<5;i++)
	strcpy(s[i].level,"合格");
	for(i=5;i<10;i++)
	strcpy(s[i].level,"不及格");
	
	
}