'''ABCD * 9 = DCBA
通过计算机的方法，给我们计算出 A= ? B = ? C = ? D =?
A; 1-9
B: 1-9
C: 1-9
D; 1-9
A != B != C != D
''' 例子：
class CountNumber(object):
'''ABCD * 9 = DCBA
通过计算机的方法，给我们计算出 A= ? B = ? C = ? D =?
A; 1-9
B: 1-9
C: 1-9
D; 1-9
A != B != C != D
'''
def __init__(self):
print("ABCD * 9 = DCBA; A !=B !=C !=D")
def numAdbcd(self):
for A in range(1,10):
for B in range(0,10):
for C in range(0,10):
for D in range(0,10):
if (A*1000 + B*100 + C*10 + D) * 9 == (D*1000+C*100+B*10+A):
print("{0}{1}{2}{3} *9 = {4}{5}{6}{7}".format(A,B,C,D,D,C,B,A))
print("A = {0}, B = {1}, C = {2}, D = {3}".format(A, B, C, D))
def main():
countNumber = CountNumber()
countNumber.numAdbcd() if __name__ == '__main__':
main()
#!/usr/bin/env python
# -*- coding:utf-8 -*-
# @time: 2018/1/7 16:10
# Author: caicai
# @File: demon3.py
'''九宫格''' class NinePaper(object):
def __init__(self):
print('''
_____________
|_A_|_B_|_C_|
|_D_|_E_|_F_|
|_G_|_H_|_I_|
A, B, C, D, E, F, G, H, I 必须是1-9数字，且不能重复
所有的行，列，对角线的和都为15
''')
self.numbers = list()
for i in range(1,10):
self.numbers.append(i)
print("number = {0}".format(self.numbers))
def run(self):
for A in range(1,10):
l1 = list()
l1 += self.numbers
l1.remove(A)
for B in l1:
l2 = list()
l2 += l1
l2.remove(B)
for C in l2:
l3 = list()
l3 += l2
l3.remove(C)
for D in l3:
l4 = list()
l4 += l3
l4.remove(D)
for E in l4:
l5 = list()
l5 += l4
l5.remove(E)
for F in l5:
l6 = list()
l6 += l5
l6.remove(F)
for G in l6:
l7 = list()
l7 += l6
l7.remove(G)
for H in l7:
l8 = list()
l8 += l7
l8.remove(H)
for I in l8:
if A + B + C == D + E + F == G + H + I == A + D + G == B + E + H == C + F + I == A + E + I == C + E + G == 15:
print('''
_____________
|_{0}_|_{1}_|_{2}_|
|_{3}_|_{4}_|_{5}_|
|_{6}_|_{7}_|_{8}_|
'''.format(A, B, C, D, E, F, G, H, I)) def main():
ninePaper = NinePaper()
ninePaper.run() if __name__ == '__main__':
main()
去一个passwd文件按序号大小进行排序写入新的字典
passwd文件
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
systemd-bus-proxy:x:999:997:systemd Bus Proxy:/:/sbin/nologin
systemd-network:x:192:192:systemd Network Management:/:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
polkitd:x:998:996:User for polkitd:/:/sbin/nologin
colord:x:997:995:User for colord:/var/lib/colord:/sbin/nologin
abrt:x:173:173::/etc/abrt:/sbin/nologin
unbound:x:996:994:Unbound DNS resolver:/etc/unbound:/sbin/nologin
tss:x:59:59:Account used by the trousers package to sandbox the tcsd daemon:/dev/null:/sbin/nologin
libstoragemgmt:x:995:993:daemon account for libstoragemgmt:/var/run/lsm:/sbin/nologin
rpc:x:32:32:Rpcbind Daemon:/var/lib/rpcbind:/sbin/nologin
usbmuxd:x:113:113:usbmuxd user:/:/sbin/nologin
saslauth:x:994:76:Saslauthd user:/run/saslauthd:/sbin/nologin
geoclue:x:993:991:User for geoclue:/var/lib/geoclue:/sbin/nologin
setroubleshoot:x:992:989::/var/lib/setroubleshoot:/sbin/nologin
rtkit:x:172:172:RealtimeKit:/proc:/sbin/nologin
mysql:x:27:27:MariaDB Server:/var/lib/mysql:/sbin/nologin
qemu:x:107:107:qemu user:/:/sbin/nologin
radvd:x:75:75:radvd user:/:/sbin/nologin
chrony:x:991:988::/var/lib/chrony:/sbin/nologin
rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin
nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
pulse:x:171:171:PulseAudio System Daemon:/var/run/pulse:/sbin/nologin
gdm:x:42:42::/var/lib/gdm:/sbin/nologin
gnome-initial-setup:x:990:985::/run/gnome-initial-setup/:/sbin/nologin
avahi:x:70:70:Avahi mDNS/DNS-SD Stack:/var/run/avahi-daemon:/sbin/nologin
postfix:x:89:89::/var/spool/postfix:/sbin/nologin
ntp:x:38:38::/etc/ntp:/sbin/nologin
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
tcpdump:x:72:72::/:/sbin/nologin
osadmin:x:1000:1000:osadmin:/home/osadmin:/bin/bash
mysql-proxy:x:989:984:MySQL-Proxy user:/:/sbin/nologin
wxp:x:1001:1001::/home/wxp:/bin/bash
nginx:x:988:983:Nginx web server:/var/lib/nginx:/sbin/nologin
uwsgi:x:987:982:uWSGI daemon user:/run/uwsgi:/sbin/nologin import codecs import os class SortPasswd(object):
def __init__(self):
self.passwd = "passwd"
self.newpasswd = "newPasswd"
self.contextList = list()
if not os.path.exists(self.passwd):
print("please download passwd from linux.")
exit(1)
print("sort file is :{0}".format(self.passwd))
print("sorted file is :{0}".format(self.newpasswd))
def getContextList(self):
with codecs.open("passwd") as fr:
self.contextList += sorted(fr.readlines(), key=lambda line:int(line.split(":")[2]), reverse=False)
print(self.contextList)
def writeContextList(self):
with codecs.open("new_passwd", "w") as fw:
fw.writelines(self.contextList) def main():
sortpasswd = SortPasswd()
sortpasswd.getContextList()
sortpasswd.writeContextList() if __name__ == '__main__':
main()