student_read.c

来自「c语言版的学生成绩管理系统」· C语言 代码 · 共 19 行

student * read(){
    student *head;
    student *p1,*p2;
    FILE *file;
    file=fopen("student_infor","rb");
    if(file==NULL)
        printf("can't open file student_infor\n");
    head=p1=p2=(student *)malloc(sizeof(student));
    while(file!=NULL){
        p1->next=p2;
        p1=p2;
        fread(p2,sizeof(student),1,file);
        p2=(student *)malloc(sizeof(student));
    }   
    p1->next=NULL;
    fclose(file);
    free(p2);
}