c语言文件

任务1

你现在拥有一个数组，数组中储存着总共10个人的姓名字符串
你需要为每个人创建一个txt文件，以他们的名字命名。

生成效果如下

代码如下

#include<stdio.h>

int main() {
    FILE* fp;
    char name[10][20] = { "宋林涛","黄力强","陈汉煜","张旭","李龙生","蔡泓顺","郝冰冰","茅志雄","雷雯雯","朱仕岳" };
    int i;
    for (i = 0;i < 10;i++) {
        sprintf(name[i], "%s.txt", name[i]);
        fp = fopen(name[i], "w");
        if (fp == NULL) {
            break;
        }
        fclose(fp);
    }

    return 0;
}

任务2

在任务一的基础上，这次不仅仅要创建txt文件，还需要往文件中写入
每个人的学号，性别，班级，线代成绩

生成效果如下

代码如下

#include<stdio.h>
struct stu {
    char id[100];
    char name[30];
    char grade[10];
    char sex[10];
    char Class[10];
}s1[100];

int main() {
    FILE* fp;
    char name[10][20] = { "宋林涛","黄力强","陈汉煜","张旭","李龙生","蔡泓顺","郝冰冰","茅志雄","雷雯雯","朱仕岳" };
    int i;
    for (i = 0;i < 10;i++) {
        sprintf(name[i], "%s.txt", name[i]);
        fp = fopen(name[i], "w+");
        scanf("%s %s %s %s", s1[i].id, s1[i].sex, s1[i].Class, s1[i].grade);
        fprintf(fp, "%s %s %s %s", s1[i].id, s1[i].sex, s1[i].Class, s1[i].grade);
        fclose(fp);
    }

    return 0;
}

任务3

在任务二生成的文件中，将每个人的信息再重新读取出来，放入数组中。
[要求使用结构体数组，结构体需要包含姓名，学号，性别，班级，线代成绩5个属性]

生成效果如下

代码如下

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
struct stu {
    char id[100];
    char name[30];
    char grade[10];
    char sex[10];
    char Class[10];
}s1[100];

int main() {
    FILE* fp;
    char name[100][20] = { "宋林涛","黄力强","陈汉煜","张旭","李龙生","蔡泓顺","郝冰冰","茅志雄","雷雯雯","朱仕岳" };
    char name2[100][20] = { "宋林涛","黄力强","陈汉煜","张旭","李龙生","蔡泓顺","郝冰冰","茅志雄","雷雯雯","朱仕岳" };
    int i;
    for (i = 0;i < 10;i++) {
        sprintf(name[i], "%s.txt", name[i]);
        //fp = fopen(name[i], "w+");
        //scanf("%s %s %s %s", s1[i].id, s1[i].sex, s1[i].Class, s1[i].grade);
        //fprintf(fp, "%s %s %s %s", s1[i].id, s1[i].sex, s1[i].Class, s1[i].grade);
        //fclose(fp);
    }
    system("cls");
    for (i = 0;i < 10;i++) {
        if ((fp = fopen(name[i], "r")) == NULL) {
            printf("File open error");
            exit(0);
        }
        while (!feof(fp)) {
            fscanf(fp, "%s %s %s %s", s1[i].id, s1[i].sex, s1[i].Class, s1[i].grade);
        }
            strcpy(s1[i].name, name2[i]);
            printf("%s\t%s\t%s\t%s\t%s\n", s1[i].name,s1[i].id, s1[i].sex, s1[i].Class, s1[i].grade);
            
        }
        fclose(fp);
    return 0;
}

任务四：

试着使用一下system("cls"),system("pause")这两个命令，看看这两个
命令能不能对你的程序起到一些美化的作用。

对程序的美化

最终的运行效果如下

代码如下

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<windows.h>
struct stu {
    char id[100];
    char name[30];
    char grade[10];
    char sex[10];
    char Class[10];
}s1[100];

int main() {
    system("color E1");
    FILE* fp;
    char name[100][20] = { "宋林涛","黄力强","陈汉煜","张旭","李龙生","蔡泓顺","郝冰冰","茅志雄","雷雯雯","朱仕岳" };
    char name2[100][20] = { "宋林涛","黄力强","陈汉煜","张旭","李龙生","蔡泓顺","郝冰冰","茅志雄","雷雯雯","朱仕岳" };
    int i;
    printf(" ┏━━━━━━━━━━━━━━━━━━━━━━━┓ \n");

    printf(" ┃      学生管理系统     ┃ \n");

    printf(" ┣━━━━━━━━━━━━━━━━━━━━━━━┫ \n");

    printf(" ┃        欢迎使用       ┃ \n");

    printf(" ┃      按任意键继续     ┃ \n");

    printf(" ┗━━━━━━━━━━━━━━━━━━━━━━━┛ \n");
    system("pause");
    system("cls");
    printf("请依次输入\n");
    printf("学号            性别    班级    线代成绩\n");
    for (i = 0;i < 10;i++) {
        sprintf(name[i], "%s.txt", name[i]);
        
        fp = fopen(name[i], "w+");
        scanf("%s %s %s %s", s1[i].id, s1[i].sex, s1[i].Class, s1[i].grade);
        fprintf(fp, "%s %s %s %s", s1[i].id, s1[i].sex, s1[i].Class, s1[i].grade);
        fclose(fp);
    }
    system("pause");
    system("cls");
    printf("查看学生成绩\n");
    system("pause");
    system("cls");
    printf("学生成绩如下\n");
    for (i = 0;i < 10;i++) {
        if ((fp = fopen(name[i], "r")) == NULL) {
            printf("File open error");
            exit(0);
        }
        while (!feof(fp)) {
            fscanf(fp, "%s %s %s %s", s1[i].id, s1[i].sex, s1[i].Class, s1[i].grade);
        }
            strcpy(s1[i].name, name2[i]);
            printf("%s\t%s\t%s\t%s\t%s\n", s1[i].name,s1[i].id, s1[i].sex, s1[i].Class, s1[i].grade);
            
        }
    system("pause");
    system("cls");
    printf(" ┏━━━━━━━━━━━━━━━━━━━━━━━┓ \n");

    printf(" ┃      学生管理系统     ┃ \n");

    printf(" ┣━━━━━━━━━━━━━━━━━━━━━━━┫ \n");

    printf(" ┃        感谢使用       ┃ \n");

    printf(" ┗━━━━━━━━━━━━━━━━━━━━━━━┛ \n");

        Sleep(3000);
        fclose(fp);
    return 0;
}