5月6号作业

申请该结构体数组，容量为5，初始化5个学生的信息使用fprintf将数组中的5个学生信息，保存到文件中去下一次程序运行的时候，使用fscanf，将文件中的5个学生信息，写入(加载)到数组中去，并直接输出学生信息

1 #include <stdio.h>
2 #include <string.h>
3 #include <unistd.h>
4 #include <stdlib.h>
5 #include <sys/types.h>
6 #include <sys/stat.h>
7 #include <fcntl.h>
8 #include <pthread.h>
9 #include <semaphore.h>
0 #include <wait.h>
1 #include <signal.h>
2 #include <sys/socket.h>
3 #include <arpa/inet.h>
4 #include <sys/socket.h>
5 #include <sys/ipc.h>
6 #include <sys/sem.h>
7 #include <semaphore.h>
8 #include <sys/msg.h>
9 #include <sys/shm.h>
0 #include <sys/un.h>                                                                                                                                                                                                                                                                                                         
1 typedef struct Student
2 {
3     char name[16];
4     int age;
5     double matg_score;
6     double chinese_score;
7     double english_score;
8     double physics_score;
9     double chemistry_score;
0     double bio_score;
1 }Student,*node_p;
2 int main(int argc, const char *argv[])
3 {
4     node_p H=(node_p)malloc(sizeof(Student)*5);
5     /*if(H=NULL)
6     {
7         printf("空间申请失败\n");
8         return -1;  
9     }*/
0     strcpy((H)->name,"zhangshan");
1     (H+0)->age=20;(H+0)->matg_score=88.01;(H+0)->chinese_score=99.02;(H+0)->english_score=93.05;(H+0)->physics_score=94.04;(H+0)->chemistry_score=96.06;(H+0)->bio_score=99.99;
2     strcpy((H+1)->name,"lisi");
3     (H+1)->age=21;(H+1)->matg_score=88.11;(H+1)->chinese_score=99.12;(H+1)->english_score=93.15;(H+1)->physics_score=94.14;(H+1)->chemistry_score=96.16;(H+1)->bio_score=99.99;
4     strcpy((H+2)->name,"wangwu");
5     (H+2)->age=22;(H+2)->matg_score=88.21;(H+2)->chinese_score=99.22;(H+2)->english_score=93.25;(H+2)->physics_score=94.24;(H+2)->chemistry_score=96.26;(H+2)->bio_score=99.99;
6     strcpy((H+3)->name,"lingliu");
7     (H+3)->age=23;(H+3)->matg_score=88.31;(H+3)->chinese_score=99.32;(H+3)->english_score=93.35;(H+3)->physics_score=94.34;(H+3)->chemistry_score=96.36;(H+3)->bio_score=99.99;
8     strcpy((H+4)->name,"xiaoqi");
9     (H+4)->age=24;(H+4)->matg_score=88.41;(H+4)->chinese_score=99.42;(H+4)->english_score=93.45;(H+4)->physics_score=94.44;(H+4)->chemistry_score=96.46;(H+4)->bio_score=99.99;
0     FILE *fp=fopen("./06_tset.c","w");
1     if(fp==NULL)
2     {
3         perror("fopen");
4         return 1;
5     }
6     for(int i=0;i<5;i++)
7     {
8         fprintf(fp,"name=%s\t age=%d\t matg_score=%.2lf\t chinese_score=%.2lf\t english_score=%.2lf\t physics_score=%.2lf\t chemistry_score=%.2lf\t bio_score=%.2lf\n",(H+i)->name,(H+i)->age,(H+i)->matg_score,(H+i)->chinese_score,(H+i)->english_score,(H+i)->physics_score,(H+i)->chemistry_score,(H+i)->bio_score);
9     }
0     fclose(fp);
1     fp=fopen("./06_tset.c","r");
2     char arr[10000];
3     int i=0;
4     while(1)
5     {
6         int retval=fscanf(fp,"%c",&arr[i]);
7             if(retval==EOF)
8             {
9                 break;
0             }
1             i++;
2     }
3     for(int j=0;j<i;j++)
4     {
5         printf("%c",arr[j]);
6     }
7     fclose(fp);
8     free(H);
9     H=NULL;
0     return 0;
1 }