添加引用：ChnCharInfo.dll

添加引用空间：using Microsoft.International.Converters.PinYinConverter;


public static string GetPinYins(string Ch)
{
StringBuilder sb = new StringBuilder();
string strPinYin = string.Empty;
foreach (char ch in Ch)
{
if (ChineseChar.IsValidChar(ch))
{
ChineseChar str = new ChineseChar(ch);
sb.Append(str.Pinyins[0].Substring(0, str.Pinyins[0].Length - 1));
}
else { sb.Append(ch); }
}
return sb.ToString();
}