perl printf: float +1.2 should print as +001.200000

I have tried this:

printf("%+03.6f",+1.2开发者_运维技巧);

but it gives me

+1.200000

what I need is

+001.200000

Any ideas?

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The first number is the total number of characters, so you're asking it to provide minimum 6 digits of precision in a field of size 3 and it expands the width as needed to fit. Try 11 instead (width of your example output).