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【 tulaoshi.com - Web开发 】
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  '用途:將UTF-8編碼漢字轉換為GB2312碼,兼容英文和數字 
  '版權:雖說是原創,其實也參考了別人的部分算法 
  '用法:Response.write UTF2GB("%E9%83%BD%E5%B8%82%E6%83%85%E7%B7%A3 %E6%98%9F%E5%BA%A7") 
  
  function UTF2GB(UTFStr) 
  for Dig=1 to len(UTFStr) 
  if mid(UTFStr,Dig,1)="%" then 
  if len(UTFStr) = Dig+8 then 
  GBStr=GBStr & ConvChinese(mid(UTFStr,Dig,9)) 
  Dig=Dig+8 
  else 
  GBStr=GBStr & mid(UTFStr,Dig,1) 
  end if 
  else 
  GBStr=GBStr & mid(UTFStr,Dig,1) 
  end if 
  next 
  UTF2GB=GBStr 
  end function 
  function ConvChinese(x) 
  A=split(mid(x,2),"%") 
  i=0 
  j=0 
  for i=0 to ubound(A) 
  A(i)=c16to2(A(i)) 
  next 
  for i=0 to ubound(A)-1 
  DigS=instr(A(i),"0") 
  Unicode="" 
  for j=1 to DigS-1 
  if j=1 then 
  A(i)=right(A(i),len(A(i))-DigS) 
  Unicode=Unicode & A(i) 
  else 
  i=i+1 
  A(i)=right(A(i),len(A(i))-2) 
  Unicode=Unicode & A(i) 
  end if 
  next 
  if len(c2to16(Unicode))=4 then 
  ConvChinese=ConvChinese & chrw(int("&H" & c2to16(Unicode))) 
  else 
  ConvChinese=ConvChinese & chr(int("&H" & c2to16(Unicode))) 
  end if 
  next 
  end function 
  function c2to16(x) 
  i=1 
  for i=1 to len(x) step 4 
  c2to16=c2to16 & hex(c2to10(mid(x,i,4))) 
  next 
  end function 
  function c2to10(x) 
  c2to10=0 
  if x="0" then exit function 
  i=0 
  for i= 0 to len(x) -1 
  if mid(x,len(x)-i,1)="1" then c2to10=c2to10+2^(i) 
  next 
  end function 
  function c16to2(x) 
  i=0 
  for i=1 to len(trim(x)) 
  tempstr= c10to2(cint(int("&h" & mid(x,i,1)))) 
  do while len(tempstr)4 
  tempstr="0" & tempstr 
  loop 
  c16to2=c16to2 & tempstr 
  next 
  end function 
  function c10to2(x) 
  mysign=sgn(x) 
  x=abs(x) 
  DigS=1 
  do 
  if x2^DigS then 
  exit do 
  else 
  DigS=DigS+1 
  end if 
  loop 
  tempnum=x 
  i=0 
  for i=DigS to 1 step-1 
  if tempnum=2^(i-1) then 
  tempnum=tempnum-2^(i-1) 
  c10to2=c10to2 & "1" 
  else 
  c10to2=c10to2 & "0" 
  end if 
  next 
  if mysign=-1 then c10to2="-" & c10to2 
  end function 
  % 
来源:http://www.tulaoshi.com/n/20160219/1621178.html
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