首先，安装好VS2019

vs2019安装过程：

https://blog.csdn.net/qq_34848334/article/details/104571140

然后进入EasyX下载官网：

官网地址：https://easyx.cn/downloads/

按照步骤安装EasyX,：
1，点击箭头所指的区域

2，点击箭头所指区域

3，点击箭头所指区域

4，打开下载好的exe

5，点击下一步

6，点击vs2019所对应的安装

vs2019下载，安装EasyX完成

测试代码，滚动的时钟

#include <graphics.h>
#include <conio.h>
#include <math.h>
#define Width 640
#define Height 480
#define PI 3.14159
int main()
{
 // 初始化绘图窗口
 initgraph(640, 480, SHOWCONSOLE);
 //秒针起始坐标
 int center_x = Width / 2, center_y = Height / 2;
 //秒针终点坐标
 int secondEnd_x, secondEnd_y;
 //分针终点坐标
 int minuteEnd_x, minuteEnd_y;
 //时针终点坐标
 int hourEnd_x, hourEnd_y;
 //秒针长度
 int secondLength = Width / 4;
 //分针长度
 int minuteLength = Width / 5.5;
 //时针长度
 int hourLength = Width / 7;
 //秒针对应转到角度
 float secondAngle = 0;
 //分针对应转到角度
 float minuteAngle = 0;
 //时针对应转到角度
 float hourAngle = 0;
 //定义变量存储系统时间
 SYSTEMTIME ti;
 BeginBatchDraw();
 while (1)
 {
  setfillcolor(YELLOW);
  setlinestyle(PS_DASHDOTDOT, 5);
  setlinecolor(0x555555);
  circle(center_x, center_y, secondLength + 30);
  setcolor(0xAAAAAA);
  setlinestyle(PS_DOT | PS_ENDCAP_SQUARE, 2);
  circle(center_x, center_y, secondLength + 15);
  for (int i = 0; i < 12; i++)
  {
int x = center_x + cos(i * 30.0 / 360 * 2 * PI) * (secondLength + 15.0);
   int y = center_y - sin(i * 30.0 / 360 * 2 * PI) * (secondLength + 15.0);
    fillcircle(x, y, 5);
  }
  GetLocalTime(&ti);
  secondAngle = (ti.wSecond / 60.0) * (2 * PI);
  minuteAngle = (ti.wMinute / 60.0) * (2 * PI);
  hourAngle = ((ti.wHour % 12) / 12.0) * (2 * PI) + (ti.wMinute / 60.0) * (2 * PI / 12.0);
  secondEnd_x = center_x + secondLength * sin(secondAngle);
  secondEnd_y = center_y - secondLength * cos(secondAngle);
  minuteEnd_x = center_x + minuteLength * sin(minuteAngle);
  minuteEnd_y = center_y - minuteLength * cos(minuteAngle);
  hourEnd_x = center_x + hourLength * sin(hourAngle);
  hourEnd_y = center_y - hourLength * cos(hourAngle);
  //画秒针
  setlinestyle(PS_SOLID, 1);
  setcolor(WHITE);
  line(center_x, center_y, secondEnd_x, secondEnd_y);
  //画分针
  setlinestyle(PS_SOLID, 2);
     setcolor(GREEN);
  line(center_x, center_y, minuteEnd_x, minuteEnd_y);
  //画时针
  setlinestyle(PS_SOLID, 5);
  setcolor(RED);
  line(center_x, center_y, hourEnd_x, hourEnd_y);
  FlushBatchDraw();
  setlinestyle(PS_SOLID, 1);
  setcolor(BLACK);
  line(center_x, center_y, secondEnd_x, secondEnd_y);
  setlinestyle(PS_SOLID, 2);
  setcolor(BLACK);
  line(center_x, center_y, minuteEnd_x, minuteEnd_y);
  setlinestyle(PS_SOLID, 5);
  setcolor(BLACK);
  line(center_x, center_y, hourEnd_x, hourEnd_y);
 }
 EndBatchDraw();
 system("pause");
 closegraph();
 return 0;
}

效果图