student.c

#include "student.h"
#include "show.h"
/*#include "list.h"*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>


//功  能: 学生的主要功能选择
//返回值:	0, 正常返回
//			-1，文件不存在、打开或创建失败
//			-2, 退出登录
int stu_opt()
{
    STUDENT stu;
    int ret = stu_vertify(&stu);
    if(ret == -1)
        return -1;
    if(ret == -2)
        return -2;
    alt_tips("学生登录成功");
    for(;;) {
        stu_opt_show();
        login_stu_msg(stu);
        int select = get_select();

        switch(select)
        {
            case 1: //老师查询
                /*
                 *ret = stu_add();
                 *if( ret==0 ) {
                 *    alt_tips("添加成功");
                 *} else if(ret == -1) {
                 *    alt_tips("文件错误，密码修改失败");
                 *} else if(ret == -2) {
                 *    alt_tips("已取消添加");
                 *}
                 */
                break;
            case 2: //学生修改密码
                break;
            case -1:
                return -2;
            default:
                break;
        }
    }
}

//功  能: 添加学生到数据
//返回值: 0,添加成功
//		  -1，文件操作失败
//		  -2, 取消添加
int stu_add()
{
    if( access(STU_DB, F_OK) != 0 ) { 
        //没有学生数据，初始化数据文件
        FILE *fp = fopen(STU_DB, "w");
        ERRP( fp==NULL, "fopen", return -1);
        int id_start = STU_ID_START;
        fwrite(&id_start, 4, 1, fp);
        fclose(fp);
    }

    alt_tips("");
    stu_add_show();
    STUDENT stu;
    FILE *fp = fopen(STU_DB, "r");
    ERRP( fp==NULL, "fopen", return -1);
    fread(&stu.id, 4, 1, fp);
    fclose(fp);

    printf("\033[%d;%dH\033[34m添加学号 \033[32m%d \033[34m的学生信息.\033[0m",MAIN_X_SUB-2, MAIN_Y_SUB + 15, ++stu.id);
    printf("\033[%d;%dH", MAIN_X_SUB, MAIN_Y_SUB+10);
    get_name(stu.name, MAIN_X_SUB, MAIN_Y_SUB+10);
    if( strcmp(stu.name, "B")==0 || strcmp(stu.name, "b")==0 ) 
        return -2;

    printf("\033[%d;%dH", MAIN_X_SUB+2, MAIN_Y_SUB+10);
    get_gender(stu.gender, MAIN_X_SUB+2, MAIN_Y_SUB+10);
    if( strcmp(stu.gender, "B")==0 || strcmp(stu.gender, "b")==0 ) 
        return -2;

    char ch_num[4];
    printf("\033[%d;%dH", MAIN_X_SUB+4, MAIN_Y_SUB+10);
    get_int(ch_num);
    if( strcmp(ch_num, "B")==0 || strcmp(ch_num, "b")==0 ) 
        return -2;
    stu.age = atoi(ch_num);//年龄
    if(stu.age<=0 || stu.age >=100)
        stu.age = 23;

    printf("\033[%d;%dH", MAIN_X_SUB+6, MAIN_Y_SUB+10);
    get_int(ch_num);
    if( strcmp(ch_num, "B")==0 || strcmp(ch_num, "b")==0 ) 
        return -2;
    stu.c_score = atoi(ch_num);//c成绩
    if(stu.c_score<0 || stu.c_score >100)
        stu.c_score = 0;

    printf("\033[%d;%dH", MAIN_X_SUB+8, MAIN_Y_SUB+10);
    get_int(ch_num);
    if( strcmp(ch_num, "B")==0 || strcmp(ch_num, "b")==0 ) 
        return -2;
    stu.cpp_score = atoi(ch_num);//cpp成绩
    if(stu.cpp_score<0 || stu.cpp_score >100)
        stu.cpp_score = 0;

    strcpy(stu.psw,"123");

    alt_tips("");
    confirm_show("是否添加此学生信息?");
    add_stu_dislay(stu);
    printf("\033[%d;%dH\033[0m", MAIN_X_SUB-5, MAIN_Y_SUB + 6);
    char ch;
    scanf("%c", &ch);
    while(getchar() != '\n');

    if(ch != 'y' && ch != 'Y') {
        return -2;
    }
    fp = fopen(STU_DB, "r+");
    ERRP( fp==NULL, "fopen", return -1);
    fwrite(&stu.id, 4, 1, fp);
    fseek(fp, 0, SEEK_END);
    fwrite(&stu, sizeof(STUDENT), 1, fp);
    fclose(fp);
    system("clear");
    return 0;
}

//功  能: 新添加的学生显示在侧边栏
void add_stu_dislay(STUDENT stu)
{
    printf("\033[%d;%dH\033[36m", MAIN_X_SUB -1, DIVISION_START_COL+20);
    printf("学    号: %d",stu.id);
    printf("\033[%d;%dH", MAIN_X_SUB + 1, DIVISION_START_COL+20);
    printf("姓    名: %s",stu.name);
    printf("\033[%d;%dH", MAIN_X_SUB + 3, DIVISION_START_COL+20);
    printf("性    别: %s",stu.gender);
    printf("\033[%d;%dH", MAIN_X_SUB + 5, DIVISION_START_COL+20);
    printf("年    龄: %d",stu.age);
    printf("\033[%d;%dH", MAIN_X_SUB + 7, DIVISION_START_COL+20);
    printf("C   成绩: %d",stu.c_score);
    printf("\033[%d;%dH", MAIN_X_SUB + 9, DIVISION_START_COL+20);
    printf("CPP 成绩: %d",stu.cpp_score);
    printf("\033[%d;%dH", MAIN_X_SUB + 11, DIVISION_START_COL+20);
    printf("密    码: %s",stu.psw);
    printf("\033[0m");
    fflush(NULL);
}

//功  能: 显示登录学生的信息在作者栏以上
void login_stu_msg(STUDENT stu)
{
    printf("\033[%d;%dH\033[33m", AUTHOR_X_SUB-3, DIVISION_START_COL);
    printf("|学号: ");
    printf("\033[%d;%dH", AUTHOR_X_SUB-3, DIVISION_START_COL+6);
    printf("%d", stu.id);

    printf("\033[%d;%dH", AUTHOR_X_SUB-3, DIVISION_START_COL+17+6);
    printf("|姓名:");
    printf("\033[%d;%dH", AUTHOR_X_SUB-3, DIVISION_START_COL+6+24);
    printf("%s",stu.name);

    printf("\033[%d;%dH", AUTHOR_X_SUB-3, DIVISION_START_COL+17+30);
    printf("|性别:");
    printf("\033[%d;%dH", AUTHOR_X_SUB-3, DIVISION_START_COL+6+47);
    printf("%s",stu.gender);

    printf("\033[%d;%dH", AUTHOR_X_SUB-3, DIVISION_START_COL+17+53);
    printf("|年龄:");
    printf("\033[%d;%dH", AUTHOR_X_SUB-3, DIVISION_START_COL+6+70);
    printf("%d",stu.age);

    printf("\033[%d;%dH", AUTHOR_X_SUB-3, DIVISION_START_COL+17+76);
    printf("|c成绩:");
    printf("\033[%d;%dH", AUTHOR_X_SUB-3, DIVISION_START_COL+7+93);
    printf("%d",stu.c_score);

    printf("\033[%d;%dH", AUTHOR_X_SUB-3, DIVISION_START_COL+17+100);
    printf("|cpp成绩:");
    printf("\033[%d;%dH", AUTHOR_X_SUB-3, DIVISION_START_COL+9+117);
    printf("%d",stu.cpp_score);

    printf("\033[%d;%dH\033[0m", MAIN_X_SUB-5, MAIN_Y_SUB + 6);
    fflush(NULL);
}


//功  能: 学生验证
//返回值: 0,验证成功
//		  -1,文件操作失败
//		  -2,取消登录,返回主界面
//		  -3,没有学生信息
int stu_vertify(STUDENT *stu)
{
    if( access(STU_DB, F_OK) != 0 ) {
        return -1;
    }
    int last_id,tmp_id=0;
    FILE *fp = fopen(STU_DB, "r");
    ERRP( fp==NULL, "fopen", return -1);
    fread(&last_id, 4, 1, fp);
    fclose(fp);
    if( last_id == STU_ID_START ) {
        return -3;
    }
    alt_tips("");
    stu_tea_vertify_show();

    for(;;) {
        cover_char( MAIN_X_SUB, MAIN_Y_SUB + 12 , CONSOLE_LEN - (MAIN_Y_SUB + 12));
        cover_char( MAIN_X_SUB + 2, MAIN_Y_SUB + 12 , CONSOLE_LEN - (MAIN_Y_SUB + 12));
        char ch_id[11];
        for(;;) { //获取学生ID;
            printf("\033[%d;%dH", MAIN_X_SUB, MAIN_Y_SUB+12);
            get_int(ch_id);
            if( strcmp(ch_id, "B")==0 || strcmp(ch_id, "b")==0 ) 
                return -2;
            tmp_id = atoi(ch_id);
            if(tmp_id <= STU_ID_START || tmp_id > last_id) {
                cover_char( WARNING_X, 0, CONSOLE_LEN);
                printf("\033[%d;%dH\033[31m没有学号为 %d 的学生\033[0m\n",WARNING_X, WARNING_Y, tmp_id);
                cover_char( MAIN_X_SUB, MAIN_Y_SUB + 12 , CONSOLE_LEN - (MAIN_Y_SUB + 12));
                continue;
            }
            cover_char( WARNING_X, 0, CONSOLE_LEN);
            break;
        }	
        char str_psw[PSW_LEN+1];
        printf("\033[%d;%dH", MAIN_X_SUB + 2, MAIN_Y_SUB+12);
        get_psw(str_psw); //获取学生登录密码
        if( strcmp(str_psw, "B")==0 || strcmp(str_psw, "b")==0 ) 
            return -2;

        FILE *fp = fopen(STU_DB, "r");
        ERRP( fp==NULL, "fopen", return -1);
        fseek( fp, 4+(tmp_id-STU_ID_START-1)*sizeof(STUDENT), SEEK_SET);
        fread(stu, sizeof(STUDENT), 1, fp);
        fclose(fp);
        if( stu->id == STU_DELETE_ID ) {
            cover_char( WARNING_X, 0, CONSOLE_LEN);
            printf("\033[%d;%dH\033[31m学号为 %d 的学生已被管理员删除\033[0m\n",WARNING_X, WARNING_Y, stu->id);
            continue;
        }
        if( strcmp(str_psw, stu->psw) != 0) {
            cover_char( WARNING_X, 0, CONSOLE_LEN);
            printf("\033[%d;%dH\033[31m用户名或密码错误\033[0m\n",WARNING_X, WARNING_Y);
            continue;
        }
        break;
    }
    return 0;
}

//功  能: 学生查找
//返回值: 0,退出查询
//		  -1,文件错误
int stu_find()
{
    if( access(STU_DB, F_OK) != 0 ) {
        return -1;
    }
    alt_tips("学生信息");
    stu_find_show();
    find_stu_msg();

    int len=0;
    FILE *fp = fopen(STU_DB, "r");
    ERRP( fp==NULL, "fopen", return -1);
    fread(&len, 4, 1, fp);
    fclose(fp);
    len -= STU_ID_START;

    //显示学生信息
    STU_LIST handle; 
    memset(&handle, 0, sizeof(STU_LIST));
    handle.next = &handle;
    handle.prev = &handle;
    /*将STU_SHOW_CNT个学生的信息，读到handle中*/
    stu_list_read( &handle, 0, len);
    int cnt=0,tmp;
    char ch;
    const int GAP = 15;
    const int offset = 24;
    printf("\033[%d;%dH\033[32m", MAIN_X_SUB , DIVISION_START_COL+offset);
    printf("学号");

    printf("\033[%d;%dH", MAIN_X_SUB, DIVISION_START_COL+offset+GAP);
    printf("姓名");

    printf("\033[%d;%dH", MAIN_X_SUB, DIVISION_START_COL+offset+2*GAP);
    printf("性别");

    printf("\033[%d;%dH", MAIN_X_SUB, DIVISION_START_COL+offset+3*GAP);
    printf("年龄");

    printf("\033[%d;%dH", MAIN_X_SUB, DIVISION_START_COL+offset+4*GAP);
    printf("C成绩");

    printf("\033[%d;%dH", MAIN_X_SUB, DIVISION_START_COL+offset+5*GAP);
    printf("Cpp成绩");

    fflush(NULL); 
    for(;;) {
        /*将handle中的信息显示出来*/
        tmp = stu_list_display(&handle, cnt, SHOW_CNT);
        cnt += tmp;

INPUT:
        //光标定位在输入区
        cover_char( MAIN_X_SUB-5 , MAIN_Y_SUB+6, CONSOLE_LEN-(MAIN_Y_SUB+6));
        printf("\033[%d;%dH\033[0m", MAIN_X_SUB-5, MAIN_Y_SUB + 6);
        //用户输入选择
        ch = getchar();
        if(ch=='\n') {
            break;
        }
        while(getchar()!='\n');

        cover_char( WARNING_X, 0, CONSOLE_LEN);
        switch(ch) 
        {
            case 'n':
                if(len <= cnt) {
                    cnt -= tmp;
                    printf("\033[%d;%dH\033[31m已经是最后页\033[0m\n",WARNING_X, WARNING_Y);	
                } else {
                    clear_stu_display();
                }	
                break;
            case 'N':
                cnt -= tmp;
                cnt -= SHOW_CNT;
                if(cnt < 0) {
                    cnt += SHOW_CNT;
                    printf("\033[%d;%dH\033[31m已经是开始页\033[0m\n",WARNING_X, WARNING_Y);
                } else {
                    clear_stu_display();
                }
                break;
            case 'Q':
            case 'q':
                system("clear");
                exit(0);
            case 'B':
            case 'b':
                return 0;

            case '1':
                clear_stu_display();
                stu_sort_id(&handle);
                cnt =0;
                break;
            case '2':
                clear_stu_display();
                stu_sort_gender(&handle);
                cnt =0;
                break;
            case '3':
                clear_stu_display();
                stu_sort_age(&handle);
                cnt =0;
                break;
            case '4':
                clear_stu_display();
                stu_sort_c(&handle);
                cnt =0;
                break;
            case '5':
                clear_stu_display();
                stu_sort_cpp(&handle);
                cnt =0;
                break;

            default:
                cover_char( WARNING_X, 0, CONSOLE_LEN);
                printf("\033[%d;%dH\033[31m请按提示输入\033[0m\n",WARNING_X, WARNING_Y);
                goto INPUT;
        }
    }

    //获取学号
    char ch_id[6]="";
    printf("\033[%d;%dH\033[32m", MAIN_X_SUB-3, DIVISION_START_COL + 6);
    fgets(ch_id, NAME_LEN+1, stdin);
    if(ch_id[strlen(ch_id)-1] == '\n')
        ch_id[strlen(ch_id)-1] = '\0';
    else
        while(getchar()!='\n');
    if( strcmp(ch_id, "B")==0 || strcmp(ch_id, "b")==0 ) 
        return 0;

    //获取名字
    char ch_name[NAME_LEN+1]="";
    printf("\033[%d;%dH", MAIN_X_SUB-3, DIVISION_START_COL+17+6 + 6);
    fgets(ch_name, NAME_LEN+1, stdin);
    if(ch_name[strlen(ch_name)-1] == '\n')
        ch_name[strlen(ch_name)-1] = '\0';
    else
        while(getchar()!='\n');
    if( strcmp(ch_name, "B")==0 || strcmp(ch_name, "b")==0 ) 
        return 0;
/*
    //获取性别
    char ch_gender[4]="";
    printf("\033[%d;%dH", MAIN_X_SUB -3, DIVISION_START_COL+17+30+6);
    if(ch_gender[strlen(ch_gender)-1] == '\n')
        ch_gender[strlen(ch_gender)-1] = '\0';
    else
        while(getchar()!='\n');
    if( strcmp(ch_gender, "B")==0 || strcmp(ch_gender, "b")==0 ) 
        return 0;

    //获取年龄
    char ch_age[4]="";
    printf("\033[%d;%dH", MAIN_X_SUB -3, DIVISION_START_COL+17+53+6);
    get_int(ch_age);
    if( strcmp(ch_age, "B")==0 || strcmp(ch_age, "b")==0 ) 
        return 0;

    //获取c成绩
    char ch_c[4]="";
    printf("\033[%d;%dH", MAIN_X_SUB -3, DIVISION_START_COL+17+76+6);
    get_int(ch_c);
    if( strcmp(ch_c, "B")==0 || strcmp(ch_c, "b")==0 ) 
        return 0;

    char ch_cpp[4]="";
    printf("\033[%d;%dH", MAIN_X_SUB -3, DIVISION_START_COL+17+100+6);
    get_int(ch_cpp);
    if( strcmp(ch_cpp, "B")==0 || strcmp(ch_cpp, "b")==0 ) 
        return 0;
*/
    clear_stu_display();
    STU_LIST *tail = handle.next;
    if(strcmp(ch_id,"")!=0) {
        int id = atoi(ch_id);
        for(tail=handle.next; tail!=&handle; tail =tail->next) {
            if(tail->stu.id == id) {
                stu_data_display(&tail->stu, 1);
                break;
            }
        }
        if(tail==&handle) {
            printf("\033[%d;%dH\033[32m", MAIN_X_SUB+2 , DIVISION_START_COL+24);
            printf("查询没有结果\n");	
        }
    } else {
        printf("\033[%d;%dH\033[32m", MAIN_X_SUB+2 , DIVISION_START_COL+24);
        printf("查询没有结果.\n");	
    }
    printf("\033[0m");
    getchar();
    stu_free(&handle);
}


//学号排序
void stu_sort_id(STU_LIST *head)
{
    STU_LIST *p = head->next;
    STU_LIST *q = head->next;
    STUDENT stu;
    for(p=head; p->next!=head; p=p->next) {
        for(q=head->next; q!=head; q=q->next) {
            if(p->stu.id > q->stu.id) {
                memcpy(&stu, &q->stu, sizeof(STUDENT));
                memcpy(&q->stu, &p->stu, sizeof(STUDENT));
                memcpy(&p->stu,&stu, sizeof(STUDENT));
            } //end if
        } //end q
    }
    p = head->prev;
    for(q=head->next;q!=p;q=q->next) {
        if(p->stu.id > q->stu.id) {
            memcpy(&stu, &q->stu, sizeof(STUDENT));
            memcpy(&q->stu, &p->stu, sizeof(STUDENT));
            memcpy(&p->stu,&stu, sizeof(STUDENT));	
        }
    }
}

//性别排序
void stu_sort_gender(STU_LIST *head)
{
    STU_LIST *p = head->next;
    STU_LIST *q = head->next;
    STUDENT stu;
    for(p=head; p->next!=head; p=p->next) {
        for(q=head->next; q!=head; q=q->next) {
            if(strcmp(p->stu.gender, q->stu.gender)>0) {
                memcpy(&stu, &q->stu, sizeof(STUDENT));
                memcpy(&q->stu, &p->stu, sizeof(STUDENT));
                memcpy(&p->stu,&stu, sizeof(STUDENT));
            } //end if
        } //end q
    }
    p = head->prev;
    for(q=head->next;q!=p;q=q->next) {
        if(strcmp(p->stu.gender, q->stu.gender)>0) {
            memcpy(&stu, &q->stu, sizeof(STUDENT));
            memcpy(&q->stu, &p->stu, sizeof(STUDENT));
            memcpy(&p->stu,&stu, sizeof(STUDENT));	
        }
    }
}

//年龄排序
void stu_sort_age(STU_LIST *head)
{
    STU_LIST *p = head->next;
    STU_LIST *q = head->next;
    STUDENT stu;
    for(p=head; p->next!=head; p=p->next) {
        for(q=head->next; q!=head; q=q->next) {
            if(p->stu.age > q->stu.age) {
                memcpy(&stu, &q->stu, sizeof(STUDENT));
                memcpy(&q->stu, &p->stu, sizeof(STUDENT));
                memcpy(&p->stu,&stu, sizeof(STUDENT));
            } //end if
        } //end q
    }
    p = head->prev;
    for(q=head->next;q!=p;q=q->next) {
        if(p->stu.age > q->stu.age) {
            memcpy(&stu, &q->stu, sizeof(STUDENT));
            memcpy(&q->stu, &p->stu, sizeof(STUDENT));
            memcpy(&p->stu,&stu, sizeof(STUDENT));	
        }
    }
}

//c成绩排序
void stu_sort_c(STU_LIST *head)
{
    STU_LIST *p = head->next;
    STU_LIST *q = head->next;
    STUDENT stu;
    for(p=head; p->next!=head; p=p->next) {
        for(q=head->next; q!=head; q=q->next) {
            if(p->stu.c_score > q->stu.c_score) {
                memcpy(&stu, &q->stu, sizeof(STUDENT));
                memcpy(&q->stu, &p->stu, sizeof(STUDENT));
                memcpy(&p->stu,&stu, sizeof(STUDENT));
            } //end if
        } //end q
    }
    p = head->prev;
    for(q=head->next;q!=p;q=q->next) {
        if(p->stu.c_score > q->stu.c_score) {
            memcpy(&stu, &q->stu, sizeof(STUDENT));
            memcpy(&q->stu, &p->stu, sizeof(STUDENT));
            memcpy(&p->stu,&stu, sizeof(STUDENT));	
        }
    }
}

//cpp成绩排序
void stu_sort_cpp(STU_LIST *head)
{
    STU_LIST *p = head->next;
    STU_LIST *q = head->next;
    STUDENT stu;
    for(p=head; p->next!=head; p=p->next) {
        for(q=head->next; q!=head; q=q->next) {
            if(p->stu.cpp_score > q->stu.cpp_score) {
                memcpy(&stu, &q->stu, sizeof(STUDENT));
                memcpy(&q->stu, &p->stu, sizeof(STUDENT));
                memcpy(&p->stu,&stu, sizeof(STUDENT));
            } //end if
        } //end q
    }
    p = head->prev;
    for(q=head->next;q!=p;q=q->next) {
        if(p->stu.cpp_score > q->stu.cpp_score) {
            memcpy(&stu, &q->stu, sizeof(STUDENT));
            memcpy(&q->stu, &p->stu, sizeof(STUDENT));
            memcpy(&p->stu,&stu, sizeof(STUDENT));	
        }
    }
}


//功  能: 释放空间
void stu_free(STU_LIST *head)
{
    STU_LIST *tail, *tmp;
    for(tail = head->next; tail!=head; tail = tmp ) {
        tmp = tail->next;
        free(tail);	
    }
}

//功  能: 在handle中存入STU_DB中start开始的cnt个数据
//返回值: 实际存入hanlde中的数据
int stu_list_read(STU_LIST *handle, int start, int cnt)
{
    FILE *fp = fopen(STU_DB, "r");
    ERRP( fp==NULL, "fopen", return 0);
    int i,len;
    fread(&len, 4, 1, fp);
    len = len - STU_ID_START;
    if(len <= start)
        return 0;
    if(len > cnt+start)
        len = cnt+start;
    fseek(fp, 4+(start)*sizeof(STUDENT), SEEK_SET);
    STU_LIST *tail= handle;
    for(i=0; i<len-start; ++i,tail= tail->next) {
        STU_LIST *newD  = (STU_LIST *)malloc(sizeof(STU_LIST));
        fread(&newD->stu, sizeof(STUDENT), 1, fp);
        newD->next = handle;
        newD->prev = tail;
        tail->next = newD;
        handle->prev = newD;
    }
    return len-start; 
}

//功  能: 显示handle中的数据
int stu_list_display(STU_LIST *handle, int start, int cnt)
{
    STU_LIST *tail;
    int i;
    for(tail=handle->next, i=0; tail!=handle && i!=start ; ++i, tail = tail->next);
    if(tail == handle)
        return 0;
    for(i=0; tail!=handle && i<cnt; ++i, tail = tail->next) {
        stu_data_display(&tail->stu, i);
    } 
    return i;
}
//功  能: 覆盖已经显示的学生信息
void clear_stu_display()
{
    int num;
    for(num=0;num<SHOW_CNT; ++num) {
        cover_char( 2+MAIN_X_SUB + 2*num, 0, CONSOLE_LEN);
    }
    fflush(NULL); 
}

//显示学生结构体信息
void stu_data_display(STUDENT *stu, int num)
{
    const int GAP = 15;
    const int offset = 24;
    printf("\033[%d;%dH\033[32m",2+ MAIN_X_SUB+2*num , DIVISION_START_COL+offset);
    printf("%d",stu->id);

    printf("\033[%d;%dH",2+ MAIN_X_SUB+2*num, DIVISION_START_COL+offset+GAP);
    printf("%s",stu->name);

    printf("\033[%d;%dH",2+ MAIN_X_SUB+2*num, DIVISION_START_COL+offset+2*GAP);
    printf("%s",stu->gender);

    printf("\033[%d;%dH", 2+MAIN_X_SUB+2*num, DIVISION_START_COL+offset+3*GAP);
    printf("%d",stu->age);

    printf("\033[%d;%dH",2+ MAIN_X_SUB+2*num, DIVISION_START_COL+offset+4*GAP);
    printf("%d",stu->c_score);

    printf("\033[%d;%dH",2+ MAIN_X_SUB+2*num, DIVISION_START_COL+offset+5*GAP);
    printf("%d",stu->cpp_score);

    printf("\033[%d;%dH\033[0m", MAIN_X_SUB-5, MAIN_Y_SUB + 6);
    fflush(NULL); 
}

//功  能: 显示查找条件
void find_stu_msg()
{
    printf("\033[%d;%dH\033[33m", MAIN_X_SUB-3, DIVISION_START_COL);
    printf("学号:_______");
/*
    printf("\033[%d;%dH", MAIN_X_SUB-3, DIVISION_START_COL+17+6);
    printf("姓名:_______");

    printf("\033[%d;%dH", MAIN_X_SUB -3, DIVISION_START_COL+17+30);
    printf("性别:_______");

    printf("\033[%d;%dH", MAIN_X_SUB -3, DIVISION_START_COL+17+53);
    printf("年龄:________");

    printf("\033[%d;%dH", MAIN_X_SUB -3, DIVISION_START_COL+17+76);
    printf("C   :_______");

    printf("\033[%d;%dH", MAIN_X_SUB -3, DIVISION_START_COL+17+100);
    printf("Cpp :_____");
*/
    printf("\033[%d;%dH\033[0m", MAIN_X_SUB-5, MAIN_Y_SUB + 6);
    fflush(NULL);
}