您可以提取包含单个数字的字符串(例如使用 Regex)，将 Int16.Parse 应用于每个字符串，然后将其转换为字符.

You can extract strings containing individual numbers (using Regex for example), apply Int16.Parse to each and then convert it to a char.

string num = "0641"; // replace it with extracting logic of your preference
char c = (char)Int16.Parse(num, System.Globalization.NumberStyles.HexNumber);