(defun calc (n)
(do ( (x 1 (1+ x) ) (sum 0) )
( (> x n) (print sum)(print 'nihao) )
(psetq sum (+ sum (/ 1.0 x )) ) ))
(log 1000)
(calc 1000)
(log 10000)
(calc 10000)
(log 100000)
(calc 100000)
(log 1000000)
(calc 1000000)
(log 10000000)
(calc 10000000)
(log 100000000)
(calc 100000000)