Padding Zeros in XSLT

问题:

Is there any function that pads zeros on the left?

The requirements of what I'm trying to do are:

• We don't know the coming input string length.
• If it is less than 20 we have to pad zeros on the left side.
• If the input string length is 10 then we have to pad 10 zeros in the left side.

Example

Input:

1234567899

Output:

00000000001234567899

回答1:

format-number function can be used for this:

<xsl:value-of select="format-number(1234567899, '00000000000000000000')" />