asp二进制和十六进制相互转换函数

asp二进制转换为十六进制

<%
function c2to16(x)
    i=1
    for i=1 to len(x) step 4
       c2to16=c2to16 & hex(c2to10(mid(x,i,4)))
    next
end function
%>

asp十六进制转换为二进制

<%
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
%>

asp二进制转换为十进制

<%
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%>

asp十进制转换为二进制

<%function c10to2(x)
    mysign=sgn(x)
    x=abs(x)
    DigS=1
    do
       if x<2^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
%>