c# 中文简繁体转换 表情

[HttpGet]
        public IActionResult Get8()
        {
            var a = "测试文本😍😁💕";
            var b = ChineseConverter.Convert(a, ChineseConversionDirection.SimplifiedToTraditional);
            return Ok(b);
        }

nuget加载CHTCHSConv包