Question

mfc 画图问题，在线等待，问什么运行后只有两条曲线啊！谢谢啦~！

int num1,num2,num3;
CString str1,str2,str3;
GetDlgItemText(L1,str1);//获取控件方法1
GetDlgItemText(XL,str2);
GetDlgItemText(power,str3);
num1= _tstoi( LPCTSTR(str1) );
num2= _tstoi( LPCTSTR(str2) );
num3= _tstoi( LPCTSTR(str3) );

CWnd *pWnd=GetDlgItem(IDC_STATIC1);
CDC *pControlDC=pWnd->GetDC();
pWnd->Invalidate();
pWnd->UpdateWindow();
pControlDC->SelectStockObject(BLACK_BRUSH);
// pControlDC->LineTo(0,num2);

for(i=2;i<num1;i++)
{

X= (i-2)/(num1-2);
X=X^num3;
X=X*num2;

pControlDC->MoveTo(0,X);
pControlDC->LineTo(num2,X);

}

pWnd->ReleaseDC(pControlDC);
}

Answer 1

没明白你的意思，num1会控制循环，看你输入的值是多少了