#include <stdio.h> #include <stdlib.h> #include <string.h> const int N = 10; // 定义结构体类型struct student,并定义其别名为STU typedef struct student { long int id; char name[20]; float objective; /*客观题得分*/ float subjective; /*操作题得分*/ float sum; char level[10]; }STU; // 函数声明 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; } // 从文本文件examinee.txt读入考生信息:准考证号,姓名,客观题得分,操作题得分 void input(STU s[], int n) { FILE *fin; fin = fopen("examinee.txt", "r"); if( !fin ) { printf("fail to open examinee.txt\n"); exit(0); } for(int i=0; i<N; i++) fscanf(fin, "%ld %s %f %f", &s[i].id, s[i].name, &s[i].objective, &s[i].subjective); fclose(fin); } // 输出考生完整信息: 准考证号,姓名,客观题得分,操作题得分,总分,等级 // 不仅输出到屏幕上,还写到文本文件result.txt中 void output(STU s[], int n) { FILE *fout; fout = fopen("result.txt", "w"); if( !fout ) { printf("fail to open result.txt\n"); exit(0); } for (int i = 0; i < n; i++){ printf("%ld\t %5s\t %20.2f\t %10.2f\t %5.2f\t %5s\n", s[i].id, s[i].name, s[i].objective,s[i].subjective,s[i].sum,s[i].level); fprintf(fout, "%ld\t %5s\t %20.2f\t %10.2f\t %5.2f\t %5s\n",s[i].id, s[i].name, s[i].objective,s[i].subjective,s[i].sum,s[i].level); } } // 对考生信息进行处理:计算总分,排序,确定等级 void process(STU s[], int n) { int i,j,k; STU temp; j=n/10-1; k=n/2-1; for(i=0;i<n;i++){ s[i].sum=s[i].objective+s[i].subjective; } for(i=0;i<n-1;i++) for(j=0;j<n-1-i;j++) if(s[j].sum<s[j+1].sum){ temp=s[j]; s[j]=s[j+1]; s[j+1]=temp; } for(i=0;i<n;i++){ if(i<j) strcpy(s[i].level,"优秀"); else if(i>=j&&i<=k) strcpy(s[i].level,"合格"); else if(i>k) strcpy(s[i].level,"不合格"); } }
原文:https://www.cnblogs.com/zhang654321/p/12127715.html