Unicode和字符相互转化的函数

// 将字符转化成Unicode 
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[i]<>#0) or (a[i+1]<>#0)) do begin 
    j:=IntToHex(Integer(a[i]),2); 
    k:=IntToHex(Integer(a[i+1]),2); 
    s:=s+k+j; 
    i:=i+2; 
  end; 
    Result:=s; 
end; 

// 将Unicode转化成字符 
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< if end; s:="s+Char(ReadHex(j))+Char(ReadHex(k));" i:="i+4;" k:="Copy(Unicode,i,2);" j:="Copy(Unicode,i+2,2);" begin do>'' then 
    s:=WideCharToString(PWideChar(s+#0#0#0#0)) 
  else 
    s:=''; 
  Result:=s; 
end;