1+1/2+1/3.....1/n可有公式?
											1+1/2+1/3.....1/n可有公式? 2007-08-07 00:14
	    2007-08-07 00:14
  
 2007-08-07 07:55
	    2007-08-07 07:55
   2007-08-07 08:30
	    2007-08-07 08:30
   2007-08-07 10:53
	    2007-08-07 10:53
   2007-08-07 21:09
	    2007-08-07 21:09
   2007-08-08 09:43
	    2007-08-08 09:43
   2007-08-08 22:50
	    2007-08-08 22:50
   2007-08-10 19:50
	    2007-08-10 19:50
  
 2007-08-12 11:36
	    2007-08-12 11:36
   2007-08-13 19:18
	    2007-08-13 19:18