#include <iostream>

 #include <windows.h>

 #include <random>

 #include <time.h>

 #include <string>

 #define COLOR_WHITE 0x0F

 //#define COLOR_GREEN 0x0A

 #define PROCESS_SIGN ">"

 #define PROCESS_SPEED 6

 #define PROCESS_MAX 100

 #define PROCESS_RATE 9        //MAX IS 10

 static std::mt19937_64 randnum;

 static CONSOLE_SCREEN_BUFFER_INFO csbi;

 static HANDLE hstdout;

 int RandNum(int min, int max)

 {

     if (min < )

     {

         std::cout << "RandNum Function Parameter Error: The min is wrong number! " << std::endl;

         return -;

     }

     if (min >= max)

     {

         std::cout << "RandNum Function Parameter Error: The min and max are wrong numbers! " << std::endl;

         return -;

     }

     uint64_t tmpNum = randnum();

     return tmpNum % (max - min) + min;

 }

 int PrintWith_(const char* const str, int count, WORD color = COLOR_WHITE)

 {

     int ret = ;

     SetConsoleTextAttribute(hstdout, color);

     for (int i = ; i < count; i++)

     {

         ret += printf(str);

     }

     SetConsoleTextAttribute(hstdout, COLOR_WHITE);

     return ret;

 }

 void Backspace(int count)

 {

     PrintWith_("\b", count);

 }

 bool Init()

 {

     if (PROCESS_RATE > )

     {

         return false;

     }

     if (PROCESS_SPEED > PROCESS_MAX)

     {

         return false;

     }

     hstdout = GetStdHandle(STD_OUTPUT_HANDLE);

     GetConsoleScreenBufferInfo(hstdout, &csbi);

     randnum.seed(GetCurrentTime());

     return true;

 }

 int main()

 {

     if (!Init())

     {

         std::cout << "Config Error!" << std::endl;

         ExitProcess();

         return ;

     }

     int percent = ;

     int spc = ;

     while (percent < )

     {

         int inc = RandNum(, PROCESS_SPEED);

         percent += inc;

         if (percent > PROCESS_MAX)

         {

             inc = percent - PROCESS_MAX;

             percent = PROCESS_MAX;

         }

         Backspace(spc);

         PrintWith_(PROCESS_SIGN, inc, FOREGROUND_INTENSITY);

         char percentText[];

         sprintf_s(percentText, "  %d%%%%", percent);

         spc = PrintWith_(percentText, , FOREGROUND_GREEN);

         Sleep(( - PROCESS_RATE) * );

     }

     ////TEST:

     //COORD pos = { 34, 10 };

     //DWORD dWrited = 0;

     //FillConsoleOutputCharacter(hstdout, '*', 5, pos, &dWrited);

     //FillConsoleOutputAttribute(hstdout, FOREGROUND_BLUE, 3, pos, &dWrited);

     //WriteConsoleOutputCharacter(hstdout, "■", 2, pos, &dWrited);

     std::cout << std::endl;

     system("pause");

     CloseHandle(hstdout);

     return ;

 }