vs中代码没有报错，但是代码没有运行完全

一、问题遇到的现象和发生背景
代码没有报错，但密码输入成功后没有继续运行，只是一直重复上一步

二、相关代码

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <string.h>
#include <iostream>
#define MAX_NAME 11         
#define MAX_DETAIL 21      
#define M 155            
#define N 155           
using namespace std;

void add_income();                     
void search_income();                   
void changeTotalIncomeMoneyTOSelect(int usageJudge);
void selectIncomeByUsage();             
void incomePercent();                   
void printfSingleIncome(int i);         

void add_payout();                      
void search_payout();                    
void changeTotalPaymentMoneyTOSelect(int usageJudge);
void selectPaymentByUsage();            
void paymentPercent();                  
void printfSinglePayment(int p);         
void menu();
void allPayoutMoneyCount();
void allIncomeMoneyCount();
void readData();
void quit();
int numberJudge();
int usageJudge();

struct payment {
    int id;
    float money;
    int year;
    int month;
    int day;
    int usage;
    float percent;
}payment[M];
struct comement {
    int id;
    float money;
    int year;//年
    int month;
    int day;
    int usage;
    float percent;
}comement[N];


const char fileName[] = "d:\\test.txt";//文件存储路径
int currentMaxId;//当前文件中的最大id
int n;///当前文件中记录的数目
int m;

//收入数据
float totalIncomeMoney = 0;
float istudyMoney = 0;
float icateringMoney = 0;
float iclothesMoney = 0;
float irecreationMoney = 0;
int selectIncomeUsage = 0;

//支出数据
float totalPayoutMoney = 0;
float pstudyMoney = 0;
float pcateringMoney = 0;
float pclothesMoney = 0;
float precreationMoney = 0;


void readData()
{
    FILE* fp;///定义文件指针
    if ((fp = fopen(fileName, "r")) == NULL)
    {
        fp = fopen(fileName, "w");
    }
    else
    {
        for (n = 0; !feof(fp); n++)
        {
            fscanf_s(fp, "%d %f %d %d %d %d %d %f %d %d %d %d\n", &payment[n].id, &payment[n].money, &payment[n].year, &payment[n].month, &payment[n].day, &payment[n].usage, &comement[n].id, &comement[n].money, &comement[n].year, &comement[n].month, &comement[n].day, &comement[n].usage);///将结构体里的信息写入文本
        } ///保存文件数据到结构体
        if (n == 0)
            currentMaxId = 0;
        else
            currentMaxId = payment[n - 1].id;
    }
    fclose(fp);
}




//菜单选项
void menu()
{
    int flag = 0;//中断程序的标志
    while (flag)
    {
        readData();//重新加载文本数据
        allPayoutMoneyCount();//计算当前金额总数
        allIncomeMoneyCount();
        system("cls");//清屏操作
        int selectOPS;
        cout << " |-------------------------------------------------|\n" << endl;
        cout << " |----------- 欢迎进入个人财务管理系统 ----------- |\n" << endl;
        cout << " |-------------------------------------------------|\n" << endl;
        cout << " |\t\tIncome                                       |\n" << endl;
        cout << " |\t\t1.添加收入                                   |\n" << endl;
        cout << " |\t\t2.查询收入明细                               |\n" << endl;
        cout << " |\t\t3.按类别查看收入                             |\n" << endl;
        cout << " |\t\t4.统计收入比例                               |\n" << endl;
        cout << " |-------------------------------------------------|\n" << endl;
        cout << " |\t\tPayout                                       |\n" << endl;
        cout << " |\t\t5.添加支出                                   |\n" << endl;
        cout << " |\t\t6.查询支出明细                               |\n" << endl;
        cout << " |\t\t7.按类别查看支出                             |\n" << endl;
        cout << " |\t\t8.统计支出比例                               |\n" << endl;
        cout << " |-------------------------------------------------|\n" << endl;
        cout << " |\t\t0.退出系统                                   |\n" << endl;
        cout << " |-------------------------------------------------|\n" << endl;

        printf("请选择(0-8):[ ]\b\b");
        selectOPS = numberJudge();
        if (selectOPS < 0 || selectOPS>8)///错误输入，重新获取输入
        {
            printf("请确定好您要选择的服务，重新输入！！！\n");
            system("pause");
            menu();
        }
        else///正确输入
            switch (selectOPS)///根据输入实现相应函数调用
            {
            case 1: add_income();
                break;

            case 2:search_income();
                break;

            case 3:selectIncomeByUsage();
                break;

            case 4:incomePercent();
                break;

            case 5:add_payout();
                break;

            case 6:search_payout();
                break;

            case 7:selectPaymentByUsage();
                break;

            case 8:paymentPercent();
                break;

            case 0:flag=0;
                break;
            }
    }
}

/*内容过长无法放入*/


int main()
{
    readData();///读取文件数据
    char passw[] = "314";
    char test[20] = "0";
    int count = 0;//用来记录登录次数
    
    while (count < 3)
        {
        printf("请输入密码->");
        scanf_s("%s", &test,4);
        if (strcmp(passw, test) == 0)
        {
            void menu();///显示主菜单
        }
        else
        {
            printf("密码错误\n");
            count++;
        }
    
    }
    if (3 == count)
    {
        printf("退出程序\n");
    }
    return 0;
}

三、运行结果

img

四、我的解答思路和尝试过的方法

1、把上面的main{}代换成

int main()
{
    readData();///读取文件数据
    menu();///显示主菜单
}

但是结果运行窗口没有任何显示

2、我把void menu 放到main{}，结果提示报错

五、 我想要达到的结果

通过密码正确，正常进入 menu

帮你重新弄了下，只是你有写函数并未实现。所以我注释起来了。你写完函数再放开

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <string.h>
#include <iostream>
#define MAX_NAME 11         
#define MAX_DETAIL 21      
#define M 155            
#define N 155           
using namespace std;

void add_income();
void search_income();
void changeTotalIncomeMoneyTOSelect(int usageJudge);
void selectIncomeByUsage();
void incomePercent();
void printfSingleIncome(int i);

void add_payout();
void search_payout();
void changeTotalPaymentMoneyTOSelect(int usageJudge);
void selectPaymentByUsage();
void paymentPercent();
void printfSinglePayment(int p);
void menu();
void allPayoutMoneyCount();
void allIncomeMoneyCount();
void readData();
void quit();
int numberJudge();
int usageJudge();

struct payment {
    int id;
    float money;
    int year;
    int month;
    int day;
    int usage;
    float percent;
}payment[M];
struct comement {
    int id;
    float money;
    int year;//年
    int month;
    int day;
    int usage;
    float percent;
}comement[N];


const char fileName[] = "d:\\test.txt";//文件存储路径
int currentMaxId;//当前文件中的最大id
int n;///当前文件中记录的数目
int m;

//收入数据
float totalIncomeMoney = 0;
float istudyMoney = 0;
float icateringMoney = 0;
float iclothesMoney = 0;
float irecreationMoney = 0;
int selectIncomeUsage = 0;

//支出数据
float totalPayoutMoney = 0;
float pstudyMoney = 0;
float pcateringMoney = 0;
float pclothesMoney = 0;
float precreationMoney = 0;


void readData()
{
    FILE* fp;///定义文件指针
    if ((fp = fopen(fileName, "r")) == NULL)
    {
        fp = fopen(fileName, "w");
    }
    else
    {
        for (n = 0; !feof(fp); n++)
        {
            fscanf_s(fp, "%d %f %d %d %d %d %d %f %d %d %d %d\n", &payment[n].id, &payment[n].money, &payment[n].year, &payment[n].month, &payment[n].day, &payment[n].usage, &comement[n].id, &comement[n].money, &comement[n].year, &comement[n].month, &comement[n].day, &comement[n].usage);///将结构体里的信息写入文本
        } ///保存文件数据到结构体
        if (n == 0)
            currentMaxId = 0;
        else
            currentMaxId = payment[n - 1].id;
    }
    fclose(fp);
}

void quit()
{
}

int numberJudge()
{
    return 0;
}

int usageJudge()
{
    return 0;
}



//菜单选项
void menu()
{
    int flag = 1;//中断程序的标志
    while (flag)
    {
        //readData();//重新加载文本数据    //这些函数并未实现，先注释起来
        //allPayoutMoneyCount();//计算当前金额总数
        //allIncomeMoneyCount();
        //system("cls");//清屏操作
        //int selectOPS;
        cout << " |-------------------------------------------------|\n" << endl;
        cout << " |----------- 欢迎进入个人财务管理系统 ----------- |\n" << endl;
        cout << " |-------------------------------------------------|\n" << endl;
        cout << " |\t\tIncome                                       |\n" << endl;
        cout << " |\t\t1.添加收入                                   |\n" << endl;
        cout << " |\t\t2.查询收入明细                               |\n" << endl;
        cout << " |\t\t3.按类别查看收入                             |\n" << endl;
        cout << " |\t\t4.统计收入比例                               |\n" << endl;
        cout << " |-------------------------------------------------|\n" << endl;
        cout << " |\t\tPayout                                       |\n" << endl;
        cout << " |\t\t5.添加支出                                   |\n" << endl;
        cout << " |\t\t6.查询支出明细                               |\n" << endl;
        cout << " |\t\t7.按类别查看支出                             |\n" << endl;
        cout << " |\t\t8.统计支出比例                               |\n" << endl;
        cout << " |-------------------------------------------------|\n" << endl;
        cout << " |\t\t0.退出系统                                   |\n" << endl;
        cout << " |-------------------------------------------------|\n" << endl;

        int n = 0;
        scanf("%d", &n);   //这个阻塞下，不然会一直运行

        /*printf("请选择(0-8):[ ]\b\b");
        selectOPS = numberJudge();
        if (selectOPS < 0 || selectOPS>8)///错误输入，重新获取输入
        {
            printf("请确定好您要选择的服务，重新输入！！！\n");
            system("pause");
            menu();
        }
        else///正确输入
            switch (selectOPS)///根据输入实现相应函数调用
            {
            case 1: add_income();
                break;

            case 2:search_income();
                break;

            case 3:selectIncomeByUsage();
                break;

            case 4:incomePercent();
                break;

            case 5:add_payout();
                break;

            case 6:search_payout();
                break;

            case 7:selectPaymentByUsage();
                break;

            case 8:paymentPercent();
                break;

            case 0:flag = 0;
                break;
            }*/
    }
}

void allPayoutMoneyCount()
{
}

void allIncomeMoneyCount()
{
}

/*内容过长无法放入*/


int main()
{
    //readData();///读取文件数据
    char passw[10] = "314";
    int count = 0;//用来记录登录次数

    while (count < 3)
    {
        char test[10];
        printf("请输入密码->");
        //scanf_s("%s", &test, 10);
        scanf("%s", &test);
        if (strcmp(passw, test) == 0)
        {
             menu();///显示主菜单
        }
        else
        {
            printf("密码错误\n");
            count++;
        }

    }
    if (3 == count)
    {
        printf("退出程序\n");
    }
    return 0;
}

void add_income()
{
}

void search_income()
{
}

void changeTotalIncomeMoneyTOSelect(int usageJudge)
{
}

void selectIncomeByUsage()
{
}

void incomePercent()
{
}

void printfSingleIncome(int i)
{
}

void add_payout()
{
}

void search_payout()
{
}

void changeTotalPaymentMoneyTOSelect(int usageJudge)
{
}

void selectPaymentByUsage()
{
}

void paymentPercent()
{
}

void printfSinglePayment(int p)
{
}

img

menu函数中初始化有问题。
int flag = 0;//中断程序的标志
while (flag) 这个循环是不执行的。

flag初始化为1