在Windows控制台里画一个时钟

没事学一下C++编程.

效果图：

在用一个线程，不断重画：

头文件：

#include "stdafx.h"#include <Windows.h>#include <time.h>extern "C"{WINBASEAPI HWND WINAPI GetConsoleWindow();}class TimeWatch{public:TimeWatch(int x,int y,int radius);~TimeWatch();void Start();void DrawTimeWatch();private:HWND hwnd;HDC hdc;HANDLE hThread;DWORD ThreadID;int radius;int x,y;void DrawTimeLine();void DrawTimePoint();};

代码实现：

#include "stdafx.h"#include "intArray.hpp"#include <math.h>#include <iostream>using namespace std;TimeWatch::TimeWatch(int x,int y,int radius){this->x = x;this->y = y;this->radius = radius;}TimeWatch::~TimeWatch(){}#define PAI 3.1415926#define hourLineLen 30#define MinuteLineLen 45#define SecondLineLen 50void TimeWatch::DrawTimePoint(){int count = 12;int step = 30;int px,py;double rad;hwnd = GetConsoleWindow();hdc = GetDC(hwnd);step = 30;Ellipse(hdc,x-10-radius,y-10-radius,x+10+radius,y+10+radius);int j = 1;SetPixel(hdc,x,y,255);for(int i = 0;i<360;i+=step){rad =2 * PAI * 1 * i / 360;px =(int)((cos(rad)*radius));py =(int)((sin(rad)*radius));SetPixel(hdc,x + px,y + py,255);}}void TimeWatch::DrawTimeLine(){double rad;struct tm *ltm;time_t now; int minutetime,px,py;double hourtimeLineArc,minuteLineArc,senLineArc;time(&now);//画时钟ltm = localtime(&now);minutetime = ltm->tm_hour % 12 * 60 + ltm->tm_min;hourtimeLineArc = minutetime * 1.0 / (12 * 60) * 360 - 90;rad = 2 * PAI * 1 * hourtimeLineArc/360;px = (int)(cos(rad)*hourLineLen);py = (int)(sin(rad)*hourLineLen);MoveToEx(hdc,x,y,NULL);LineTo(hdc,x+px,y+py);//分钟minuteLineArc = ltm->tm_min * (360/60) - 90;rad = 2 * PAI * 1 * minuteLineArc / 360;px = (int)(cos(rad)*MinuteLineLen);py = (int)(sin(rad)*MinuteLineLen);MoveToEx(hdc,x,y,NULL);LineTo(hdc,x+px,y+py);//秒senLineArc = ltm->tm_sec * (360 / 60) - 90;rad = 2 * PAI * 1 * senLineArc / 360;px = (int)(cos(rad)*SecondLineLen);py = (int)(sin(rad)*SecondLineLen);MoveToEx(hdc,x,y,NULL);LineTo(hdc,x+px,y+py);}void ThreadFunc(TimeWatch *tw){while(1){tw->DrawTimeWatch();Sleep(1000);}}void TimeWatch::DrawTimeWatch(){DrawTimePoint();DrawTimeLine();}void TimeWatch::Start(){hThread = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)ThreadFunc,(void *)this,0,&ThreadID);}