printf函数:类似于C语言的printf函数-vb教程

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

In C, you write:

prf( \"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 prf-function in C.
´ takes a with format characters and an .gif' />
´ 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 .
    res = \"\"

    dim pos        ´ the current position in the args .gif' />.
    pos = 0

    dim i
    for i = 1 to Len(str)
        ´ found a fmt char.
        Mid(str,i,1)=\"%\" then
            i<Len(str) then
                ´ normal percent.
                Mid(str,i+1,1)=\"%\" then
                    res = res & \"%\"
                    i = i + 1

                ´ expand from .gif' />.
                Mid(str,i+1,1)=\"x\" then
                    res = res & CStr(args(pos))
                    pos = pos+1
                    i = i + 1
                end
            end

        ´ found a normal char.
       
            res = res & Mid(str,i,1)
        end
    next

    fmt = res
end function
The format character is always %x, independent of the actual type, since VBScript has no direct types like eger or .

延伸阅读

• 2010-12-13-- printf函数,printf 函数中处理参数的核心函数
• 2010-12-13-- printf函数,printf 函数的实现原理