http://hkn.eecs.berkeley.edu./~dyoo/python/scanf/

内网下载：scanf-12tar

Description

scanf provides formatted input from standard input, strings, or files, using a format-string syntax that’s similar to C’s scanf(). The syntax should be familiar to C programmers, and offers very simple pattern matching against strings and files.

Functions

• scanf(formatString) formatted scanning across sys.stdin. Returns a tuple of the captured results.
• sscanf(inputString, formatString) formatted scanning across strings. Returns a tuple of the captured results.
• fscanf(inputFile, formatString) formatted scanning across files. Returns a tuple of the captured results.

Supported syntax

% [*] [width] [type]

• [*] suppresses variable capture. Optional.
• [width] defines maximum number of characters. Optional.
• [type] defines the type of the format string. We’ve implemented the following:

  d	decimal integer.
  i	integer. The integer may be in octal (leading zero) or hexadecimal (leading 0x or 0X).
  o	octal integer (with or without leading zero).
  x	hexadecimal integer (with or without leading 0x or 0X)
  c	characters. The next input characters (default 1) are placed at the indicated spot. The normal skip over white space is suppressed; to read the next non-white space character, use %1s.
  s	character string (not quoted).
  f	floating-point number with optional sign and optional decimal point.
  %	literal %; no assignment is made.

The module docs have more details on usage and limitations.