求求求，帮忙改改这个代码，有六七行出错。。。

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
//定义通讯录结构体
typedef struct _record
{
    char name[30];
    char phonenumber[11];
    char address[3][30]; //定义二维 0-省 1-市 2-街道
    char email[30];
    struct _record* next;
} record;
void mainmenu();//声明通讯录主菜单
void alterstring(record* head);
void browsemenu(record* head, const int total);//浏览通讯录主菜单  修改
record* newrecord(record* head, int* total);//添加联系信息
record* deleterecord(record* head, int* total);//删除联系信息
record* modifyrecord(record* head);//修改联系信息
record* searchrecord(record* head, int onlyonerecord);//查找联系信息
record* importrecords(record* head, int* total);//导入联系人信息
record* exportrecords(record* head);//导出联系人信息
//定义主函数执行通讯录功能
int main()
{
    char mima[10] = { 0 };
    int  i = 0;
    printf("请输入密码：\n");
    for (i = 0; i < 3; i++){
        scanf("%s", mima);
        getchar();        //修改
        if (strcmp(mima, "123456") == 0){
            printf("登录成功，亲爱的小猪崽！\n");
            break;
        }
        else
            printf("密码错误，小笨熊！请重新输入密码：\n");
    }
    if (3 == i){
        printf("登录失败！小笨熊\n");
        exit(1);
    }
    system("pause");
    int  total = 0, choice;
    record* head = NULL;
    printf("\n\t\t\t            欢迎使用通讯录系统!\n");
    printf("\n\t\t\t********************************************\n");
    do
    {
        mainmenu();
        scanf("%d", &choice);
        system("cls");
        switch (choice)
        {
        case 0:
            break;
        case 1:
            browsemenu(head, total);
            break;
        case 2:
            head = newrecord(head, &total);
            break;
        case 3:
            head = deleterecord(head, &total);
            break;
        case 4:
            head = modifyrecord(head);
            break;
        case 5:
            searchrecord(head, 0);
            break;
        case 6:
            head = importrecords(head, &total);
            break;
        case 7:
            exportrecords(head);
            break;
        default:
            printf("\n\n**对不起，输入错误，请输入0~7：\n");
        }
    }while (choice != 0);
    return 0;
}
//通讯录界面
void mainmenu()
{
    printf("\n");
    printf("\n\t\t\t****************1.浏览通讯录****************\n");
    printf("\n\t\t\t**************2.增加联系人信息**************\n");
    printf("\n\t\t\t**************3.删除联系人信息**************\n");
    printf("\n\t\t\t**************4.修改联系人信息**************\n");
    printf("\n\t\t\t**************5.查找联系人信息**************\n");
    printf("\n\t\t\t*************6.从文件中导出记录*************\n");
    printf("\n\t\t\t*************7.从记录导出到文件*************\n");
    printf("\n\t\t\t***************** 0.退出 *******************\n");
    printf("\n\t\t\t********************************************\n");
    printf("\n\t\t\t请输入0~7选择功能 :");
}
//定义链表地址，遇到回车键跳转下一个成员
void alterstring(record* head) {
    int m;
    record* p1 = head;
    while (p1 != NULL)
    {
        for (m = 0; m < 30; m++)
        {
            if (*((p1->name) + m) == '\n')
            {
                *((p1->name) + m) = '\0';
            }
        }
        for (m = 0; m < 11; m++)
        {
            if (*((p1->phonenumber) + m) == '\n')
            {
                *((p1->phonenumber) + m) = '\0';
            }
        }
        for (m = 0; m < 30; m++)
        {
            if (*((p1->address[0]) + m) == '\n')
            {
                *((p1->address[0]) + m) = '\0';
            }
        }
        for (m = 0; m < 30; m++)
        {
            if (*((p1->address[1]) + m) == '\n')
            {
                *((p1->address[1]) + m) = '\0';
            }
        }
        for (m = 0; m < 30; m++)
        {
            if (*((p1->address[2]) + m) == '\n')
            {
                *((p1->address[2]) + m) = '\0';
            }
        }
        for (m = 0; m < 30; m++)
        {
            if (*((p1->email) + m) == '\n')
            {
                *((p1->email) + m) = '\0';
            }
        }
        p1 = p1->next;
    }
}
//添加联系人信息
record* newrecord(record* head, int* total) //链表地址，总数地址
{
    int i = *total;
    char inputchar;
    record* p = head, * input = (record*)malloc(sizeof(record));
    //如果已经有联系人信息，则输出现有的联系人数量信息
    if (*total)
        printf("** 已有 %d 个联系人信息\n", *total);
    printf("\n**请输入联系人信息\n");
    do{
        //输入联系人信息
        printf("请输入第%d个联系人的名字:", i + 1);
        fflush(stdout); rewind(stdin);
        fgets(input->name, 30, stdin);

        printf("请输入第%d个联系人的联系方式:", i + 1);
        fflush(stdout); rewind(stdin);
        fgets(input->phonenumber,30, stdin);

        printf("请输入第%d个联系人的家庭地址:\n", i + 1);
        printf("*请输入第%d个联系人所在省份:", i + 1);
        fflush(stdout); rewind(stdin);
        fgets(input->address[0], 30, stdin);
        printf("*请输入第%d个联系人所在城市:", i + 1);
        fflush(stdout); rewind(stdin);
        fgets(input->address[1], 30, stdin);
        printf("*请输入第%d个联系人所在街道:", i + 1);
        fflush(stdout); rewind(stdin);
        fgets(input->address[2], 30, stdin);

        printf("请输入第%d个联系人的电子邮件:", i + 1);
        fflush(stdout); rewind(stdin);
        fgets(input->email, 30, stdin);
        input->next = NULL;
        if (head == NULL)
            head = input;
        else
        {
            while (p->next != NULL)
            {
                p = p->next;
            }
            p->next = input;
        }
        p = input;
        (*total)++;//计数-联系人的总数加1
        printf("\n**是否继续？(Y/N):");
        scanf(" %c", &inputchar);
        if (inputchar == 'Y' || inputchar == 'y')
        {
            input = (record*)malloc(sizeof(record));//创建新的空间
            i++;
        }
        else
            break;
    } while (1);
    alterstring(head);
    return head;
}

void browsemenu(record* head, const int total)
//void browsemenu(record* head, const int* total)
{
    if (total <= 0) {
        printf("** 通讯录无记录！\n");
        return;    //修改
    }
    int page = 0, firstindex = 0, i, pageamount = total % 10 == 0 ? total / 10 : total / 10 + 1;
    record* p = NULL;
    do
    {
        system("cls");
        printf("** 请输入跳转页数(页数共有 %d 页,按 0 返回通讯录主菜单):", pageamount);
        scanf("%d", &page);
        if (page > pageamount || page < 0)//输入页数值，不能超过最大值或小于0
        {
            printf("**对不起，页数的最大值为%d,页数最小值必大于0。\n", pageamount);
        }
        else if (page == 0) break;
        else{
            //处理分页，10个联系人一页
            firstindex = 10 * (page - 1);
            printf("NO.\t姓名\t联系电话\t省\t市\t街道\t电子邮件\n");
            for (i = 0, p = head; i < firstindex; ++i, p = p->next);//处理前置数据
            i = 0;
            //输出数据
            while (p != NULL && i < 10)
            {
                i++;
                printf("NO.%d %s %s %s %s %s %s\n", i + firstindex, p->name,
                    p->phonenumber, p->address[0], p->address[1],p->address[2],p->email);
                p = p->next;
            }
            printf("** Page %d (共 %d 页)\n ", page, pageamount);
            system("pause");
        }
    }while (1);
}
//删除联系人信息
record* deleterecord(record* head, int* total)
{
    record* p1 = head, * p2, * searchrestlt;
    searchrestlt = searchrecord(head, 1);
    while (p1 != NULL && p1 != searchrestlt)
    {
        p2 = p1;         
        p1 = p1->next;   
    }
    if (p1 == head)
    {
        head = p1->next;
        free(p1);
        (*total)--;
        printf("\n**删除成功!\n");
    }
    else if (p1 != NULL)
    {
        p2->next = p1->next;
        free(p1);
        (*total)--;
        printf("\n* *删除成功!\n");
    }
    else
    {
        printf("\n**对不起，没有找到该联系?!\n");
    }
    return head;
}
//输出联系人信息
void printonerecord(record* p)
{
    printf("姓名:%s\t联系电话:%s\t省:%s\t市:%s\t街道::%s\t电子邮件:%s\n", p->name,
            p->phonenumber,p->address[0], p->address[1], p->address[2], p->email);
}
//修改联系人信息
record* modifyrecord(record* head)
{
    record* p1 = head, * p2, * searchrestlt, * input = (record*)malloc(sizeof(record));
    //返回需要修改的数组地址
    searchrestlt = searchrecord(head, 1);
    if (!searchrestlt)
        return head;
    //输入联系人信息
    printf("\n请输入修改的联系人姓名:");
    fflush(stdout); rewind(stdin);
    fgets(input->name, 30, stdin);
    printf("请输入修改的联系人的联系电话:");
    fflush(stdout); rewind(stdin);
    fgets(input->phonenumber, 30, stdin);
    printf("请输入修改的联系人的地址:\n");
    printf("请输入修改的联系人的省份:");
    fflush(stdout); rewind(stdin);
    fgets(input->address[0], 30, stdin);
    printf("请输入修改的联系人的城市:");
    fflush(stdout); rewind(stdin);
    fgets(input->address[1], 30, stdin);
    printf("请输入修改的联系人的街道:");
    fflush(stdout); rewind(stdin);
    fgets(input->address[2], 30, stdin);
    printf("请输入修改的联系人的电子邮件:");
    fflush(stdout); rewind(stdin);
    fgets(input->email, 30, stdin);
    //插入时放于链表的最后
    input->next = NULL;
    alterstring(input);
    while (p1 != NULL && p1 != searchrestlt)
    {
        p2 = p1;         //p2上?个节点
        p1 = p1->next;   //p1下?个节点
    }
    if (p1 == head)
    {
        head = input;
        input->next = p1->next;
        free(p1);
        printf("\n**修改成功!\n");
    }
    else if (p1 != NULL)
    {
        p2->next = input;
        input->next = p1->next;
        free(p1);
        printf("\n**修改成功!\n");
    }
    else
    {
        printf("\n-- Do not find this id!\n");
    }
    return head;
    }
    //查找联系人信息
    record* searchrecord(record* head, int onlyonerecord)
    {
        int  amount = 0, i = 0, choice = 0; //i,p1循环变量
        char input[30];
        record* p1 = head, * results[100] = { NULL }; //result是record类型的指针数组
        printf("\n查找联系人:");
        setbuf(stdin, NULL);//关闭输入缓冲区
        fgets(input, 30 + 1, stdin);
        for (i = 0; i < 30; ++i)
        {
            if (*((input)+i) == '\n')
            {
                *((input)+i) = '\0';
            }
        }
        //遍历搜索
        while (p1 != NULL)
        {
            if (strstr(p1->name, input)       || //strstr()判断是否为子串
                strstr(p1->phonenumber,input) ||
                strstr(p1->address[0], input) ||
                strstr(p1->address[1], input) ||
                strstr(p1->address[2], input) ||
                strstr(p1->email, input)) {
                results[amount] = p1;
                amount++;
            }
            p1 = p1->next;
        }
        //若有同名同信息，根据编号选择联系人
        if (amount > 1)
        {
            printf("\n查找结果:\n");
            for (i = 0; i < amount; i++)
            {
                printf("NO.%d\t", i + 1);
                printonerecord(results[i]);
            }
            if (!onlyonerecord)
            {
                return NULL; //如果不需要去重，则返回NULL
            }
            printf("\n**请输入你要删除的联系人编号: ");
            scanf("%d", &choice);
            //若输入联系人编号不正确，默认删除第1位联系?
            if (choice - 1 > amount || choice < 0)
            {
                printf("\n**输入错误(默认删除找到的第1位联系人)");
                return results[0];
            }
            return results[choice - 1];
        }
        else if (!amount)

        {
            printf("\n**对不起，没有找到该联系?!");
            return NULL;
        }
        else
        {
            printf("\n** 查找结果:\n");
            printonerecord(results[0]);
            return results[0];
        }
    }

    record* importrecords(record* head, int* total) { record* p = NULL; return p; }
    record* exportrecords(record* head) { record* p = NULL; return p; }