private string GetPinyinWithTone(WordLibrary wl)
{
var sb = new StringBuilder();
for (int i = 0; i < wl.Word.Length; i++)
{
char c = wl.Word[i];
string py = wl.PinYin[i];
string pinyin = PinyinHelper.GetPinyinWithToneOfChar(c, py);
if (pinyin == null)
{
throw new Exception("找不到字[" + c + "]的拼音");
}
sb.Append(pinyin);
if (i != wl.Word.Length - 1)
{
sb.Append(" ");
}
}
return(sb.ToString());
}