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2¡¢×Ö·û´®¸ñʽ»¯£ºÓøñʽ»¯²Ù×÷·û°Ù·ÖºÅ%ʵÏÖ£¬eg:>>> format = "Hello, %s. %s enough for ya?"
                                                                          >>> values = ('world', 'Hot')  //Ôª×é
                                                                          >>> print format % values
      values ¿ÉÒÔÊǵ¥¶ÀµÄÖµ£¬±ÈÈç×Ö·û´®»òÊý×Ö£»Ò²¿ÉÒÔÊǶà¸öÖµ£¬±ÈÈçÔª×é¡£
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      Èç¹ûÄã¸ñʽ»¯ÊµÊý£¨¸¡µãÊý£© µÄ»°£¬¿ÉÒÔʹÓÃfÕâ¸ö˵Ã÷ÀàÐÍ£¬¼ÓÉÏ×÷Ϊ¾«¶ÈµÄµãºÅ“.”£¬ºóÃæ¸úÉÏÄãÏ£Íû±£ÁôµØÐ¡ÊýλÊýµÄÊ®½øÖÆ¡£eg:>>> format = "Pi with three decimals: %.3f"
     >>> from math import pi
     >>> print format % pi
3¡¢Ä£°å×Ö·û´®£ºstringÄ£¿éÌṩÁíÍâÒ»ÖÖ¸ñʽ»¯ÖµµÄ·½·¨£ºÄ£°å×Ö·û´®¡£ËüµÄ¹¤×÷·½Ê½ÀàËÆÓںܶàUNIXShellÀïµÄ±äÁ¿Ìæ»»£¬Ê¹Óô«µÝµ½substitute·½·¨µÄfooµÄ¹Ø¼ü×Ö²ÎÊýÌæ»»$foo£º
>>> from string import Template
>>> s = Template('$x, glorious $x!')
>>> s.substitute(x='slurm')
'slurm, glorious slurm!'
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2007-08-22 22:46
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