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m_edit3.Empty();
CString str;
while(k[i-1] <=m_edit2)
{
str.Format("%s%d%s","第",i-1,"次 ");
m_edit3 += str;
h[i]=a*h[i-1]+h[i-2];
k[i]=a*k[i-1]+k[i-2];
str.Format("%s%d=%d%s%d/%d","a",i-2,a," ",h[i],k[i]);
m_edit3 += str;
fun(a,b);
i++;
}
str.Format("%s%d/%d","此次得出的有理数是: ",h[i-2],k[i-2]);
m_edit3 += str;
UpdateData(TRUE);