#!/usr/bin/python
# -*- coding:utf-8 -*-
#Filename:8_12.py
'''
Created on 2012-8-14@author: wanglei
'''
def output(rangelist):print " DEC    BIN    OCT    HEX"print "-------------------------"for i in rangelist:print "%3s    %3s    %3s    %3s" %(i,bin(i)[2:],oct(i)[1:],hex(i)[2:])
def outputwithascii(rangelist):print " DEC    BIN    OCT    HEX    ASCII"print "-----------------------------------"for i in rangelist:print "%3s    %3s    %3s    %3s    %3s" %(i,bin(i)[2:],oct(i)[1:],hex(i)[2:],chr(i))
def run():rangelist=[]beg=input("请输入起始数据： ")end=input('请输入结束数据： ')if beg<0 or end<0: #输入的数字不能为负数print "输入的数不能为负数！"sys.exit()if beg<end: rangelist=range(beg,end+1)elif beg>end: #若起始值小于终止值，则进行逆序处理，注意，此处end值要-1rangelist=range(beg,end-1,-1)else:print "两次输入的数相同，请重新输入！"sys.exit()if beg in range(33,127) or end in range(33,127):outputwithascii(rangelist)else:output(rangelist)
run()

请输入起始数据： 9
请输入结束数据： 18DEC    BIN    OCT    HEX
-------------------------9    1001     11      910    1010     12      a11    1011     13      b12    1100     14      c13    1101     15      d14    1110     16      e15    1111     17      f16    10000     20     1017    10001     21     1118    10010     22     12请输入起始数据： 98
请输入结束数据： 123DEC    BIN    OCT    HEX    ASCII
-----------------------------------98    1100010    142     62      b99    1100011    143     63      c
100    1100100    144     64      d
101    1100101    145     65      e
102    1100110    146     66      f
103    1100111    147     67      g
104    1101000    150     68      h
105    1101001    151     69      i
106    1101010    152     6a      j
107    1101011    153     6b      k
108    1101100    154     6c      l
109    1101101    155     6d      m
110    1101110    156     6e      n
111    1101111    157     6f      o
112    1110000    160     70      p
113    1110001    161     71      q
114    1110010    162     72      r
115    1110011    163     73      s
116    1110100    164     74      t
117    1110101    165     75      u
118    1110110    166     76      v
119    1110111    167     77      w
120    1111000    170     78      x
121    1111001    171     79      y
122    1111010    172     7a      z
123    1111011    173     7b      {

#!/usr/bin/python
# -*- coding:utf-8 -*-
#Filename:8_13.py
'''
Created on 2012-8-14@author: wanglei
'''
import time
def compare():strtime=time.clock()alist=range(1000000)for i in range(len(alist)):print alist[i],#for i in alist:#    print i,endtime=time.clock()print "运行时间： ",(endtime-strtime)
compare()

运行时间：  27.7364464237
运行时间：  35.151471639