在C#中枚举字体

在C#中每一种字体都用FontFamily类来表示，如下：
FontFamily fontFamily = new FontFamily("Arial");
Font font = new Font(
   fontFamily,
   8,
   FontStyle.Regular,
   GraphicsUnit.Point);
RectangleF rectF = new RectangleF(10, 10, 500, 500);
SolidBrush solidBrush = new SolidBrush(Color.Black);

string familyName;
string familyList = "";
FontFamily[] fontFamilies;  //定义一个装载字体信息的字体类数组
//通过InstalledFontCollection类的Families属性来获取系统安装的所有字体
InstalledFontCollection installedFontCollection = new InstalledFontCollection();
// Get the array of FontFamily objects.
fontFamilies = installedFontCollection.Families;
//循环打印字体信息
int count = fontFamilies.Length;
for(int j = 0; j < count; ++j)
{
   familyName = fontFamilies[j].Name; 
   familyList = familyList + familyName;
   familyList = familyList + ",  ";
}
// Draw the large string (list of all families) in a rectangle.
e.Graphics.DrawString(familyList, font, solidBrush, rectF);