public void ConvertTest()
 {
     Assert.Equal("TianDiXuanHuang YuZhouHongHuang", PinyinUtil.GetFullChars("������� ������"));
     Assert.Equal("RZC XBS XXJ XXY", PinyinUtil.GetFirstChars("��֮�� �Ա��� ����� ϰ��Զ"));
 }
 public void ConvertTest()
 {
     Assert.Equal("TianDiXuanHuang YuZhouHongHuang", PinyinUtil.GetFullChars("天地玄黄 宇宙洪荒"));
     Assert.Equal("RZC XBS XXJ XXY", PinyinUtil.GetFirstChars("人之初 性本善 性相近 习相远"));
 }