/// <summary>
/// 获取字符串首个字 的 首个字符
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static char GetFirstChar(string source, bool isGroupBy = false)
{
if (string.IsNullOrEmpty(source))
{
return isGroupBy ? GROUPBY_CHAR : SORT_CHAR;
}
var t = source.Substring(0, 1);
if (WordsHelper.HasChinese(t))
{
return char.Parse((WordsHelper.GetFirstPinYin(t).Substring(0, 1)));
}
else if (WordsHelper.HasEnglish(t))
return Char.Parse(t.ToUpper());
else
return isGroupBy ? GROUPBY_CHAR : SORT_CHAR;
}