C#.NET常见问题(FAQ)-如何改变字符串编码

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public string UTF8ToGB2312(string str)
??????? {
??????????? try
??????????? {???
??????????????? Encoding utf8 = Encoding.GetEncoding(65001);
??????????????? Encoding gb2312 = Encoding.GetEncoding("gb2312");//Encoding.Default ,936
??????????????? byte[] temp = utf8.GetBytes(str);
??????????????? byte[] temp1 = Encoding.Convert(utf8, gb2312, temp);
??????????????? string result = gb2312.GetString(temp1);
??????????????? return result;
??????????? }
??????????? catch? (Exception ex)//(UnsupportedEncodingException ex)
??????????? {
??????????????? MessageBox.Show(ex.ToString());
??????????????? return null;
??????????? }
??????? }
??????? public string GB2312ToUTF8(string str)
??????? {
??????????? try
??????????? {
??????????????? Encoding uft8 = Encoding.GetEncoding(65001);
??????????????? Encoding gb2312 = Encoding.GetEncoding("gb2312");
??????????????? byte[] temp = gb2312.GetBytes(str);
??????????????? MessageBox.Show("gb2312的编码的字节个数：" + temp.Length);
??????????????? for (int i = 0; i ??????????????? {
??????????????????? MessageBox.Show(Convert.ToUInt16(temp[i]).ToString());
??????????????? }???
??????????????? byte[] temp1 = Encoding.Convert(gb2312, uft8, temp);
??????????????? MessageBox.Show("uft8的编码的字节个数：" + temp1.Length);
??????????????? for (int i = 0; i ??????????????? {
??????????????????? MessageBox.Show(Convert.ToUInt16(temp1[i]).ToString());
??????????????? }??????????????
??????????????? string result = uft8.GetString(temp1);
??????????????? return result;
??????????? }
??????????? catch? (Exception ex)//(UnsupportedEncodingException ex)
??????????? {
??????????????? MessageBox.Show(ex.ToString());
??????????????? return null;
??????????? }
??????? }

代码说明：

Encoding utf8 = Encoding.GetEncoding(65001);//使用code page

Encoding gb2312 = Encoding.GetEncoding("gb2312");//通过bodyname

获取字符编码字节序列：byte[] temp=utf8.GetBytes(str);

编码方式转换：byte[] temp1=Encoding.Convert(utf8, gb2312, temp);

获取编码的字符串：string str1=gb2312.GetString(temp1);

这样即完成了字符编码的转换。

Encoding.Default在 简体中文os中一般是gb2312格式。

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C#.NET常见问题(FAQ)-如何改变字符串编码

标签：href   image   方式   coding   result   ++   str1   i++   微软   

原文地址：http://www.cnblogs.com/acetaohai123/p/7587182.html