C++读取txt文件中的句子在终端显示，同时操控鼠标滚轮(涉及：多线程，产生随机数，文件操作等)

运行效果

功能描述

线程一：每隔n+随机秒，动一下鼠标滚轮，防止屏幕息屏。
线程二：运行时加载txt文件中的句子到数组，然后每隔n秒随机显示一个句子。

代码

mian.cpp

#include<iostream>
#include"TipsManagement.h"
#include"MouseKeyControl.h"
#include <thread>  
using namespace std;

// 声明两个线程函数，以便可以独立于 main 函数运行  
void showTipsInThread(TipsManagement* tm) {  
    while (true) {
        tm->randomShowTip();  
    }  
}  
  
void autoRollMouseInThread(MouseKeyControl* mc)
{
    while (true) {  
        mc->autoScrollMouseWheel();
    }
} 



int main()
{
    TipsManagement* tm = new TipsManagement();
    MouseKeyControl* mc = new MouseKeyControl();


    tm->n = 2 * 60 * 1000;
    mc->n = 3 * 60 * 1000;;
    
    thread tipsThread(showTipsInThread, tm);  
    thread mouseThread(autoRollMouseInThread, mc);  

    // 等待线程完成  
    tipsThread.join();  
    mouseThread.join(); 

    // delete tm;
    // delete mc;
    return 0;
}

include

MouseKeyControl.h

#pragma once
#include<iostream>
#include<string>
#include <windows.h>
#include<fstream>
#include <algorithm>  
#include <random>  
#include <ctime> 
using namespace std;

class MouseKeyControl
{
public:
    unsigned int n;   
    RECT screenRect; // get screen size;
    INPUT inputs[2] = {};
    int delta;

    int offsets[10] = {-3240,-3010,-2030,-1003,0,0,-998,-817,-603,-710};
    void initRandomIndexVec();
    void autoRandomMoveMouse();
    void autoScrollMouseWheel();
    MouseKeyControl();
    ~MouseKeyControl();
};

TipsManagement.h

#pragma once
#include<iostream>
#include<string>
#include <windows.h>
#include<fstream>
#include <algorithm>  
#include <random>  
#include <ctime>   
#define FILENAME "tipsFile.txt"  
using namespace std;

class TipsManagement
{
public:
    bool fileIsEmpty;

    int tipsNum;

    string* tipsArr;

    vector<int> randomIndexVec;

    unsigned int n; // sleep n minutes;

    void showMenu();

    void initTips();

    void initRandomIndexVec();

    void randomShowTip();

    int getTipsNum();

    void showAllTips();

    void cleanFile();

    void save();

    void addTips();

    void findTips();

    void deleteTips();

    void modifyTips();

    void sortTips();

    void exitSystem();

    string GbkToUtf8(string src_str1);

    string Utf8ToGbk(string src_str1);

    TipsManagement();

    ~TipsManagement();
};

src

MouseControl.cpp

#include "MouseKeyControl.h"
#include <windows.h>  

MouseKeyControl::MouseKeyControl()
{
    SystemParametersInfo(SPI_GETWORKAREA, 0, &this->screenRect, 0);
    // 创建一个包含两个INPUT结构体的数组，一个用于按下滚轮，一个用于释放滚轮  
    this->delta = 1;
    ZeroMemory(this->inputs, sizeof(this->inputs));  
  
    // 第一个INPUT结构体：滚轮滚动（向下滚动为正，向上滚动为负）  
    this->inputs[0].type = INPUT_MOUSE;  
    this->inputs[0].mi.dx = 0;  
    this->inputs[0].mi.dy = 0;  
    this->inputs[0].mi.mouseData = delta * WHEEL_DELTA; // WHEEL_DELTA是滚动一个“滴答”的量  
    this->inputs[0].mi.dwFlags = MOUSEEVENTF_WHEEL; // 指定这是一个滚轮事件  
    this->inputs[0].mi.time = 0;  
}

void MouseKeyControl::autoRandomMoveMouse()
{

    // 初始化随机数种子  
    // srand(static_cast<unsigned int>(time(0)));  
  
    Sleep(this->n); 

    // 生成随机位置  
    int x = rand() % (this->screenRect.right - this->screenRect.left);  
    int y = rand() % (this->screenRect.bottom - this->screenRect.top);  

    // 将鼠标移动到随机位置  
    SetCursorPos(x + this->screenRect.left, y + this->screenRect.top);  
    
}

void MouseKeyControl::autoScrollMouseWheel() { 
    // 根据当前时间初始化
    srand(static_cast<unsigned int>(time(0)));  
    // 生成0到10的随机整数（包含0但不包含10）  
    int randomNum = rand() % 10;  
    Sleep(this->n+this->offsets[randomNum]);
    // 正数表示向上滚动
    SendInput(1, this->inputs, sizeof(INPUT));  
} 


MouseKeyControl::~MouseKeyControl()
{
}

TipsManagement.cpp

#include "TipsManagement.h"

TipsManagement::TipsManagement()
{
    this->n = 3000; // the default sleep time is 3s.
    
    ifstream ifs;
    ifs.open(FILENAME, ios::in);
    //-----------------------1.file is not exist-------------------------
    if (!ifs.is_open())
    {
        cout << "The file does not exist!" << endl;
        // the label of the empty file   
        this->fileIsEmpty = true;
        // label the tip number to 0
        this->tipsNum = 0;
        // set the tip Array is Null.
        this->tipsArr = NULL;
        ifs.close(); 
        return;
    }

    //----------------2.file is exist, but the data is NULL.-------------------
    char ch;
    ifs >> ch;     // read a char in the file.
    if (ifs.eof()) // eof is the end lable of the file.
    {
        cout << "The file is empty!" << endl;
        this->tipsNum = 0;         
        this->fileIsEmpty = true; 
        this->tipsArr = NULL;    
        ifs.close();
        return;
    }

    //---------------------3.file is exist and the data are not null.-------------------------
    int num = this->getTipsNum();
    // cout << "the file have " << num << " tips." << endl;
    this->tipsNum = num; 
    this->fileIsEmpty = false;
    this->tipsArr = new string[this->tipsNum];
    this->initTips(); // read the file tips to tipsArr
    // this->showAllTips();
    this->initRandomIndexVec();// create the random vec index

}

void TipsManagement::initRandomIndexVec()
{
    for (int i = 0; i < this->tipsNum; i++)
    {
        this->randomIndexVec.push_back(i);
    }
    
    random_device rd;  
    mt19937 g(rd());  
    shuffle(begin(this->randomIndexVec), end(this->randomIndexVec), g);  
}


void TipsManagement::randomShowTip()
{
    int index;
    for (int i = 0; i < this->tipsNum; i++)
    {
        index = this->randomIndexVec[i];
        cout<<endl;
        cout<< this->tipsArr[index]<<endl;
        Sleep(this->n);
        system("cls");
    }
    
}


// when open the tips file, read all tips to tipsArr.
void TipsManagement::initTips()
{
    ifstream ifs;
    ifs.open(FILENAME, ios::in);

    string tip;

    int index = 0;
    while (ifs >> tip)
    {
        this->tipsArr[index] = tip;
        index++;
    }
    ifs.close();
}

// read tips file to get the number of tips.
int TipsManagement::getTipsNum()
{
    ifstream ifs;
    ifs.open(FILENAME, ios::in);

    string tip;

    int num = 0;
    while (ifs >> tip)
    {
        num++;
    }
    ifs.close();
    return num;
}

void TipsManagement::showAllTips()
{
    if (this->fileIsEmpty)
    {
        cout << "File is not exist or the file is empty!" << endl;
    }
    else
    {
        for (int i = 0; i < this->tipsNum; i++)
        {
            cout<<this->tipsArr[i]<<endl;
        }
    }
    system("pause");
    system("cls");
}


//------------------------------------------------useless---------------------------------------------------

void TipsManagement::showMenu()
{
    cout << "**********************************************" << endl;
    cout << "************0.Exit tipsManagement.*************" << endl;
    cout << "************1.Add tip.*******************" << endl;
    cout << "************2.Show tips.******************" << endl;
    cout << "************3.Delete someone tip.******" << endl;
    cout << "************4.Modify tip.****" << endl;
    cout << "************5.Find tip.******" << endl;
    cout << "************6.Sort by id.*****************" << endl;
    cout << "************7.Clear all documents*************" << endl;
    cout << "**********************************************" << endl;
    cout << endl;
}

void TipsManagement::addTips()
{
    cout << "Please enter the number of tips to be added:"<<endl;
    int addNum = 0;
    cin >> addNum;
    if (addNum > 0)
    {
        int newSize = this->tipsNum + addNum;
        string* newSpace = new string[newSize];
        if (this->tipsArr != NULL)
        {
            for (int i = 0; i < this->tipsNum; i++)
            {
                newSpace[i] = this->tipsArr[i];
            }
        }

        for (int i = 0; i < addNum; i++)
        {
            string tip;
            cout << "Please enter the " << i + 1 << " tip:" << endl;
            cin >> tip; 
            cout<<"new input:"<<tip<<endl;
            newSpace[this->tipsNum + i] = tip;
            cout<<"new input(arr):"<<newSpace[this->tipsNum + i]<<endl;
        }
        delete[] this->tipsArr;

        this->tipsArr = newSpace;
        this->tipsNum = newSize;
        this->fileIsEmpty = false;
        cout << "Successfully added " << addNum << " new tips!" << endl;
        
        this->save();
    }
    else
    {
        cout << "Your input is incorrect." << endl;
    }
    system("pause");
    system("cls");
}

// put the tipsArr to file.
void TipsManagement::save()
{
    ofstream ofs;
    ofs.open(FILENAME, ios::out);
    for (int i = 0; i < this->tipsNum; i++)
    {
        ofs << this->tipsArr[i]<< endl;
    }
    ofs.close();
}

void TipsManagement::exitSystem()
{
    cout << "exit." << endl;
    system("pause");
    exit(0);
}

string TipsManagement::GbkToUtf8(string src_str1)
{
    const char *src_str = src_str1.data();
    int len = MultiByteToWideChar(CP_ACP, 0, src_str, -1, NULL, 0);
    wchar_t* wstr = new wchar_t[len + 1];
    memset(wstr, 0, len + 1);
    MultiByteToWideChar(CP_ACP, 0, src_str, -1, wstr, len);
    len = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
    char* str = new char[len + 1];
    memset(str, 0, len + 1);
    WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, len, NULL, NULL);
    std::string strTemp = str;
    if (wstr) delete[] wstr;
    if (str) delete[] str;
    return strTemp;
}

string TipsManagement::Utf8ToGbk(string src_str1) //const char *src_str
{
    const char* src_str = src_str1.data();
    int len = MultiByteToWideChar(CP_UTF8, 0, src_str, -1, NULL, 0);
    wchar_t* wszGBK = new wchar_t[len + 1];
    memset(wszGBK, 0, len * 2 + 2);
    MultiByteToWideChar(CP_UTF8, 0, src_str, -1, wszGBK, len);
    len = WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, NULL, 0, NULL, NULL);
    char* szGBK = new char[len + 1];
    memset(szGBK, 0, len + 1);
    WideCharToMultiByte(CP_ACP, 0, wszGBK, -1, szGBK, len, NULL, NULL);
    std::string strTemp(szGBK);
    if (wszGBK) delete[] wszGBK;
    if (szGBK) delete[] szGBK;
    return strTemp;
}

TipsManagement::~TipsManagement()
{

}

原文地址：https://blog.csdn.net/qq_42864343/article/details/142461382

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