如何得到汉字的unicode

你需要的是这样的函数吧？
function AnsiToUnicode(Ansi: string):string;
var
s:string;
i:integer;
j,k:string[2];
a:array [1..1000] of char;
begin
s:='';
StringToWideChar(Ansi,@(a[1]),500);
i:=1;
while ((a<>#0) or (a[i+1]<>#0)) do begin
j:=IntToHex(Integer(a),2);
k:=IntToHex(Integer(a[i+1]),2);
s:=s+k+j;
i:=i+2;
end;
Result:=s;
end;
附上反编码的函数
function ReadHex(AString:string):integer;
begin
Result:=StrToInt('$'+AString)
end;
function UnicodeToAnsi(Unicode: string):string;
var
s:string;
i:integer;
j,k:string[2];
begin
i:=1;
s:='';
while i<Length(Unicode)+1 do begin
j:=Copy(Unicode,i+2,2);
k:=Copy(Unicode,i,2);
i:=i+4;
s:=s+Char(ReadHex(j))+Char(ReadHex(k));
end;
if s<>'' then
s:=WideCharToString(PWideChar(s+#0#0#0#0))
else
s:='';
Result:=s;
end;
根据你的需要进行改动就可以了。