using?System;
using?System.Collections.Generic;
using?System.Text;

namespace?Wt.FormUI
{
????public?class?ByteConvert
????{
????????///???
????????///?字符串轉16進制字節(jié)數(shù)組??
????????///???
????????///???
????????///???
????????public?static?byte[]?strToToHexByte（string?hex）
????????{
????????????//hexString?=?hexString.Replace（“?“?““）;
????????????//if?（（hexString.Length?%?2）?!=?0）
????????????//????hexString?+=?“?“;
????????????//byte[]?returnBytes?=?new?byte[hexString.Length?/?2];
????????????//for?（int?i?=?0;?i?????????????//????returnBytes[i]?=?Convert.ToByte（hexString.Substring（i?*?2?2）?16）;
????????????//return?returnBytes;
????????????if?（hex?==?null）
????????????????throw?new?ArgumentNullException（“hex“）;
????????????hex?=?hex.Replace（““?““）;
????????????hex?=?hex.Replace（“\n“?““）;
????????????hex?=?hex.Replace（“\\“?““）;
????????????hex?=?hex.Replace（“?“?““）;
????????????if?（hex.Length?%?2?!=?0）
????????????{
????????????????hex?+=?“20“;//空格?
????????????}
????????????//?需要將?hex?轉換成?byte?數(shù)組。?
????????????byte[]?bytes?=?new?byte[hex.Length?/?2];
????????????for?（int?i?=?0;?i?????????????{
????????????????try
????????????????{
????????????????????//?每兩個字符是一個?byte。?
????????????????????bytes[i]?=?byte.Parse（hex.Substring（i?*?2?2）
????????????????????System.Globalization.Numberstyles.HexNumber）;
????????????????}
????????????????catch
????????????????{
????????????????????//?Rethrow?an?exception?with?custom?message.?
????????????????????throw?new?ArgumentException（“hex?is?not?a?valid?hex?number!“?“hex“）;
????????????????}
????????????}
????????????//System.Text.Encoding?chs?=?System.Text.Encoding.GetEncoding（charset）;
????????????//return?chs.GetString（bytes）;
????????????return?bytes;
????????}
????????///???
????????///?字節(jié)數(shù)組轉16進制字符串??
????????///???
????????///???
????????///???
????????public?static?string?byteToHexStr（byte[]?bytes）
????????{
????????????StringBuilder?builder?=?new?StringBuilder（）;?;
????????????if?（bytes?!=?null）
????????????{
????????????????for?（int?i?=?0;?i?????????????????{
????????????????????builder.AppendFormat（“{0}?“?bytes[i].ToString（“X2“））;
????????????????}
????????????}
????????????string?returnStr?=?builder.ToString（）;
????????????return?returnStr;
????????}

????????///???
????????///?從漢字轉換到16進制??
????????///???
????????///???
????????///?編碼如“utf-8““gb2312“??
????????///?是否每字符用逗號分隔??
????????///???
????????public?static?string?ToHex（string?s?string?charset?bool?fenge）
????????{
????????????if?（（s.Length?%?2）?!=?0）
????????????{
????????????????s?+=?“?“;//空格??
?????????????????????????//throw?new?ArgumentException（“s?is?not?valid?chinese?string!“）;??
????????????}
????????????System.Text.Encoding?chs?=?System.Text.Encoding.GetEncoding（charset）;
????????????byte[]?bytes?=?chs.GetBytes（s）;
????????????string?str?=?““;
????????????for?（int?i?=?0;?i?