资料来源 : pyDict

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资料来源 : Free On-Line Dictionary of Computing

printf
     
         The standard function in the {C} programming
        language library for printing formatted output.
     
        The first argument is a format string which may contain
        ordinary characters which are just printed and "conversion
        specifications" - sequences beginning with '%' such as %6d
        which describe how the other arguments should be printed, in
        this case as a six-character decimal integer padded on the
        right with spaces.
     
        Possible conversion specifications are d, i or u (decimal
        integer), o ({octal}), x, X or p ({hexadecimal}), f
        ({floating-point}), e or E ({mantissa} and {exponent},
        e.g. 1.23E-22), g or G (f or e format as appropriate to the
        value printed), c (a single character), s (a string), %
        (i.e. %% - print a % character).  d, i, f, e, g are signed,
        the rest are unsigned.
     
        The variant {fprintf} prints to a given output stream and
        sprintf stores what would be printed in a string variable.
     
        {Unix manual page}: printf(3).
     
        (1996-12-08)