VC.net 字符串转换成UTF-8形式

最新推荐文章于 2025-06-02 14:05:00 发布

原创最新推荐文章于 2025-06-02 14:05:00 发布 · 1.4k 阅读

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文章标签：

#encoding #string #forms #windows #system #query

本文介绍了一个使用不同字符编码（如UTF-7、UTF-8等）进行字符串编码和解码的示例程序，并展示了如何处理包含多种特殊字符的字符串。通过具体的C#代码实现了字符串到字节序列的转换，并对转换后的字节进行了十六进制格式的打印。

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using namespace System; using namespace System::Text; void PrintCountsAndBytes( array<Char>^chars, Encoding^ enc ); void PrintHexBytes( array<Byte>^bytes ); int main() { // The characters to encode: // Latin Small Letter Z (U+007A) // Latin Small Letter A (U+0061) // Combining Breve (U+0306) // Latin Small Letter AE With Acute (U+01FD) // Greek Small Letter Beta (U+03B2) // a high-surrogate value (U+D8FF) // a low-surrogate value (U+DCFF) array<Char>^myChars = gcnew array<Char>{ L'z','a',L'/u0306',L'/u01FD',L'/u03B2',L'/xD8FF',L'/xDCFF' }; // Get different encodings. Encoding^ u7 = Encoding::UTF7; Encoding^ u8 = Encoding::UTF8; Encoding^ u16LE = Encoding::Unicode; Encoding^ u16BE = Encoding::BigEndianUnicode; Encoding^ u32 = Encoding::UTF32; // Encode the entire array, and print out the counts and the resulting bytes. PrintCountsAndBytes( myChars, u7 ); PrintCountsAndBytes( myChars, u8 ); PrintCountsAndBytes( myChars, u16LE ); PrintCountsAndBytes( myChars, u16BE ); PrintCountsAndBytes( myChars, u32 ); } void PrintCountsAndBytes( array<Char>^chars, Encoding^ enc ) { // Display the name of the encoding used. Console::Write( "{0,-30} :", enc ); // Display the exact byte count. int iBC = enc->GetByteCount( chars ); Console::Write( " {0,-3}", iBC ); // Display the maximum byte count. int iMBC = enc->GetMaxByteCount( chars->Length ); Console::Write( " {0,-3} :", iMBC ); // Encode the array of chars. array<Byte>^bytes = enc->GetBytes( chars ); // Display all the encoded bytes. PrintHexBytes( bytes ); } void PrintHexBytes( array<Byte>^bytes ) { if ( (bytes == nullptr) || (bytes->Length == 0) ) Console::WriteLine( "<none>" ); else { for ( int i = 0; i < bytes->Length; i++ ) Console::Write( "{0:X2} ", bytes[ i ] ); Console::WriteLine(); } } /* This code produces the following output. System.Text.UTF7Encoding : 18 23 :7A 61 2B 41 77 59 42 2F 51 4F 79 32 50 2F 63 2F 77 2D System.Text.UTF8Encoding : 12 24 :7A 61 CC 86 C7 BD CE B2 F1 8F B3 BF System.Text.UnicodeEncoding : 14 16 :7A 00 61 00 06 03 FD 01 B2 03 FF D8 FF DC System.Text.UnicodeEncoding : 14 16 :00 7A 00 61 03 06 01 FD 03 B2 D8 FF DC FF System.Text.UTF32Encoding : 24 32 :7A 00 00 00 61 00 00 00 06 03 00 00 FD 01 00 00 B2 03 00 00 FF FC 04 00 */

vs2005 窗口应用程序

String^ str = "http://cndic.naver.com/search.nhn?query_euckr=&query_utf=&dic_where=cndic&kind=&query="; String^ s ="我"; String^ key=""; Encoding^ ut8 = Encoding::UTF8; array<Byte>^bytes = ut8->GetBytes(s); if ( (bytes == nullptr) || (bytes->Length == 0) ) // Console::WriteLine( "<none>" ); s = ""; else { for ( int i = 0; i < bytes->Length; i++ ) key = key+ String::Format("%{0:X2}", bytes[ i ]); //System::Windows::Forms::MessageBox::Show(s); //Console::Write( "%{0:X2}", bytes[ i ] ); //Console::WriteLine(); }; str = str + key; System::Windows::Forms::MessageBox::Show(str); //this->textBox1->Text = s; this->webBrowser1->Navigate(str);

// 程序员的目标就是开发程序！