Delphi的unicode与GB2312转转换,汉字unicode转GB2312

http://blog.sina.com.cn/s/blog_53d5935e0100c6op.html

标签： it

分类： delphi

function GetChsString(ms: string): string; var   i: integer; begin   Result := '';   i:=1 ;   while i <= length(ms) do   begin    //是否是中文    if ord(ms[i])>128 then    begin      if ord(ms[i+1])>128 then      begin        //ms[i]+ms[i+1]是一个汉字        Result := Result + ms[i]+ms[i+1];        i := i + 2;      end    end    else if Result <> '' then      Break    else      inc(i)   end; end; procedure TForm1.FormCreate(Sender: TObject); const   s='ColSpan="3" CellFormat="8" DataType="1" Value="&apos;绘图输入采暖燃气管件工程量汇总表&apos;" Di'; begin   Caption := GetChsString(s); end; Delphi的unicode与GB2312转转换,汉字unicode转GB2312 {===============================================================} { 函数 : RESULTSTRING = HexToBin(HEXSTRING) { 目的 : 把十六进制字符串转换为二进制字符串 { {===============================================================} { 函数 : RESULTINTEGER = HexCharToInt(HEXCHAR) { 目的 : 转换一个十六进制字符为整数 {===============================================================} { 函数 : RESULTSTRING = HexCharToBin(HEXCHAR) { 目的 : 转换一个十六进制字符为二进制字符串 {===============================================================} { 函数 : RESULTINTEGER = Pow(BASE,POWER) { 目的 : 指数函数 {===============================================================} { 函数 : RESULTINTEGER = BinStrToInt(BINSTRING) { 目的 : 把二进制字符串转换为整数 {===============================================================} { 函数 : RESULTSTRING = DecodeSMS7Bit (PDUSTRING) { 目的 : 解码一个7-bit SMS (GSM 03.38) 为ASCII码 {===============================================================} { 函数 : RESULTSTRING = ReverseStr (SOURCESTRING) { 目的 : 反转一个字符串 {===============================================================} {===============================================================} { 函数 : RESULTSTRING = UniCode2Gb (SOURCESTRING) { 目的 : 将UniCode字符串转换为GB {===============================================================} {===============================================================} { 函数 : RESULTSTRING = GB2UniCode (SOURCESTRING) { 目的 : 将GB字符串转换为UniCode {===============================================================} unit BinHexTools; interface function HexToBin(HexNr : String): String; function HexCharToInt(HexToken : char): Integer; function HexCharToBin(HexToken : char): String; function pow(base, power: integer): integer; function BinStrToInt(BinStr : String) : Integer; function DecodeSMS7Bit(PDU : String): String; function ReverseStr(SourceStr : String) : String; function GB2UniCode(GB:string): String; function UniCode2GB(S : String): String; implementation uses sysutils, dialogs; function HexCharToInt(HexToken : char):Integer; begin //if HexToken>#97 then HexToken:=Chr(Ord(HexToken)-32); { 将小写字母转换成大写 } Result:=0; if (HexToken>#47) and (HexToken<#58) then { chars 0....9 } Result:=Ord(HexToken)-48 else if (HexToken>#64) and (HexToken<#71) then { chars A....F } Result:=Ord(HexToken)-65 + 10; end; function HexCharToBin(HexToken : char): string; var DivLeft : integer; begin DivLeft:=HexCharToInt(HexToken); { first HexChar->Int } Result:=''; { Use reverse dividing } repeat { Trick; divide by 2 } if Odd(DivLeft) then { result = odd ? then bit = 1 } Result:='1'+Result { result = even ? then bit = 0 } else Result:='0'+Result; DivLeft:=DivLeft div 2; { keep dividing till 0 left and length = 4 } until (DivLeft=0) and (length(Result)=4); { 1 token = nibble = 4 bits } end; function HexToBin(HexNr : string): string; { only stringsize is limit of binnr } var Counter : integer; begin Result:=''; for Counter:=1 to length(HexNr) do Result:=Result+HexCharToBin(HexNr[Counter]); end; function pow(base, power: integer): integer; //指数base^power var counter : integer; begin Result:=1; for counter:=1 to power do Result:=Result*base; end; function BinStrToInt(BinStr : string) : integer; var counter : integer; begin if length(BinStr)>16 then raise ERangeError.Create(#13+BinStr+#13+ '不是一个有效的16Bit二进制单元'+#13); Result:=0; for counter:=1 to length(BinStr) do if BinStr[Counter]='1' then Result:=Result+pow(2,length(BinStr)-counter); end; function DecodeSMS7Bit(PDU : string):string; var OctetStr : string; OctetBin : string; Charbin : string; PrevOctet: string; Counter : integer; Counter2 : integer; begin PrevOctet:=''; Result:=''; for Counter:=1 to length(PDU) do begin if length(PrevOctet)>=7 then { if 7 Bit overflow on previous } begin if BinStrToInt(PrevOctet)<>0 then Result:=Result+Chr(BinStrToInt(PrevOctet)) else Result:=Result+' '; PrevOctet:=''; end; if Odd(Counter) then { only take two nibbles at a time } begin OctetStr:=Copy(PDU,Counter,2); OctetBin:=HexToBin(OctetStr); Charbin:=''; for Counter2:=1 to length(PrevOctet) do Charbin:=Charbin+PrevOctet[Counter2]; for Counter2:=1 to 7-length(PrevOctet) do Charbin:=OctetBin[8-Counter2+1]+Charbin; if BinStrToInt(Charbin)<>0 then Result:=Result+Chr(BinStrToInt(CharBin)) else Result:=Result+' '; PrevOctet:=Copy(OctetBin,1,length(PrevOctet)+1); end; end; end; function ReverseStr(SourceStr : string) : string; var Counter : integer; begin Result:=''; for Counter:=1 to length(SourceStr) do Result:=SourceStr[Counter]+Result; end; function GB2UniCode(GB:string):string; var s: string; i, j, k: integer; a: array [1..160] of char; begin s:=''; StringToWideChar(GB, @(a[1]), 500); i:=1; while ((a[i]<>#0) or (a[i+1]<>#0)) do begin j:=Integer(a[i]); k:=Integer(a[i+1]); s:=s+Copy(Format('%X ',[k*$100+j+$10000]) ,2,4); //S := S + Char(k)+Char(j); i:=i+2; end; Result:=s; end; function UniCode2GB(S : String):String; Var I: Integer; begin I := Length(S); while I >=4 do begin try Result :=WideChar(StrToInt('$'+S[I-3]+S[I-2]+S[I-1]+S[I]))+ Result; except end; I := I - 4; end; end; end.