类似于C语言的printf函数

The function fmt helps you to format a string in VBScript as you do in C.

In C, if you write:

printf( "this is %s number %d", "test", 1 );

then you would use the function fmt in VBScript like this:

dim str

str = fmt( "this is %x number %x", Array("test", 1) )

Details

The complete function looks like this:

' works like the printf-function in C.

' takes a string with format characters and an array

' to expand.

'

' the format characters are always "%x", independ of the

' type.

'

' usage example:

' dim str

' str = fmt( "hello, Mr. %x, today's date is %x.", Array("Miller",Date) )

' response.Write str

function fmt( str, args )

dim res ' the result string.

res = ""

dim pos ' the current position in the args array.

pos = 0

dim i

for i = 1 to Len(str)

' found a fmt char.

if Mid(str,i,1)="%" then

if i<Len(str) then

' normal percent.

if Mid(str,i+1,1)="%" then

res = res & "%"

i = i + 1

' expand from array.

elseif Mid(str,i+1,1)="x" then

res = res & CStr(args(pos))

pos = pos+1

i = i + 1

end if

end if

' found a normal char.

else

res = res & Mid(str,i,1)

end if

next

fmt = res

end function

The format character is always %x, independent of the actual type, since VBScript has no direct types like integer or string.