/// <summary>
/// 中文拼音头字母
/// </summary>
/// <param name="content">原中文内容</param>
/// <returns>返回中文拼音头字母</returns>
public static string LetterFirst(string content)
{
Encoding gb2312 = Encoding.GetEncoding("GB2312");
content = PinginObject.ConvertEncoding(content, Encoding.UTF8, gb2312);
return(PinginObject.GetInitials(content, gb2312));
}
