要怎么修改下面这段代码，才能使本来是椭圆图形变成圆形的？？ 急求！！

Radians = (double)Time;MoveTo(CenterX,CenterY);

CPen Pen(PS_SOLID,5,RGB(255,255,0));
CPen *OldPen = pDC->SelectObject(&Pen),y,
CenterY - (int)((double)(CenterY*2/3)*cos(Radians)));
Radians = (double)Time.GetSecond();
Radians *= 6.28/,Rect.bottom-5);

double Radians;
pDC->.0.GetMinute()+(double)Time.GetSecond()/60;TextOut(x;i <,str::GetCurrentTime();12.0;

x = CenterX - (size;
/3)*sin(Radians);
CTime Time = CTime;
pDC->LineTo(CenterX + (int)((double)(CenterX*2)/

pDC->

pDC->Ellipse(5,5,Rect;SetTextColor(RGB(255,0,0));
for(i = 1.cx/2) + (int)((double)(CenterX - 20)*
sin(Radians));12.0;

CPen HourPen(PS_SOLID,5,RGB(0,255,0));
pDC->GetTextExtent(str;2;

pDC->.GetSecond()/,CenterY);
pDC->/ TODO: add draw code for native data here
RECT Rect;
GetClientRect(&Rect);
int CenterX = Rect.right/2;
int CenterY = Rect.bottom/SelectObject(&HourPen);

pDC->MoveTo(CenterX;3)*sin(Radians)),
CenterY - (int)((double)(CenterY/
Radians *= 6;
CString str;
int i;
y = CenterY - (size,str);
}

Radians = (double)Time;
pDC->SelectObject(&MinutePen),y;LineTo(CenterX + (int)((double)(CenterX*4)/5)*sin(Radians),
CenterY - (int)((double)(CenterY*4)/5*cos(Radians)));

CPen MinutePen(PS_SOLID,3,0,RGB(0,i);
size = pDC->3)*cos(Radians)));3600.0;
Radians *= 6.28/.0:OnDraw(CDC* pDC)
{
CMyClockDoc* pDoc = GetDocument()void CMyClockView:;
ASSERT_VALID(pDoc).right-5;
pDC->SelectObject(OldPen).GetLength());

Radians = (double)i*6.28/
CSize size.Format("%d".cy/2) - (int)((double)(CenterY - 20)*
cos(Radians));LineTo(CenterX + (int)((double)(CenterX/,CenterY);
pDC->.GetHour() + (double)Time.GetMinute()/60,255)).0 +
(double)Time;SelectObject(&SecondPen);

pDC->MoveTo(CenterX.28/60;60.0;

CPen SecondPen(PS_SOLID,1,RGB(0,255,255));
pDC->,x;= 12;i++){
str

pDC->Ellipse(5,5,Rect.right-5,Rect.bottom-5);
这里指明了外接矩形的左上角 右下角坐标，如果你设置这两个坐标 让长和宽相等时就是圆了
也就是 Rect.right-5-5 = Rect.bottom-5-5 长宽相等的时候就是圆了

你好！ CenterY-25,CenterX+25,CenterY+25); 看你后面用20计算字的位置，25应该差不多pDC->Ellipse(CenterX-25 如有疑问，请追问。