标签:clu ++ 考证 src void sub fscanf sys 技术
#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 *fp; fp = fopen("examinee.txt", "r"); if( !fp ) { printf("fail to open examinee.txt\n"); exit(0); } for(int i=0; i<N; i++) fscanf(fp, "%ld %s %f %f", &s[i].id, &s[i].name, &s[i].objective, &s[i].subjective); fclose(fp); } // 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 ) { // 如果打开失败,则输出错误提示信息,然后退出程序 printf("fail to open result.txt\n"); exit(0); } /* 将排序后的数组st中数据输出到屏幕,同时,也写入文件result.txt*/ for(int i=0; i<N; i++) { printf("%-6ld%-10s%7.2f %7.2f %7.2f%-15s%\n", s[i].id, s[i].name, s[i].objective, s[i].subjective, s[i].sum, s[i].level); fprintf(fout, "%-6ld%-10s %7.2f %7.2f %7.2f%-15s%\n", s[i].id, s[i].name, s[i].objective, s[i].subjective, s[i].sum, s[i].level); } fclose(fout); } // 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,k; for(i=0;i<n;i++) s[i].sum=s[i].objective+s[i].subjective; STU temp; for(k=n-1;k--;) for(i=0;i<n-1;i++) if(s[i].sum<s[i+1].sum) { temp=s[i]; s[i]=s[i+1]; s[i+1]=temp; } for(i=0;i<n;i++) { if(i<n/10) strcpy(s[i].level,"优秀"); else if(i>=n/10&&i<=4*N/10) strcpy(s[i].level,"合格"); else strcpy(s[i].level,"不合格"); } }
标签:clu ++ 考证 src void sub fscanf sys 技术
原文地址:https://www.cnblogs.com/lijingchen/p/12129050.html