python 编程

例子1:

python获取手机分辨率并返回

 

import os

import sys

import re

 

 

def _get_screen_size():

    '获取手机屏幕大小'

    size_str = os.popen('adb shell wm size').read()

    if not size_str:

        print('请安装 ADB 及驱动并配置环境变量')

        sys.exit()

    m = re.search(r'(\d+)x(\d+)', size_str)

    if m:

        return "{height}x{width}".format(height=m.group(2), width=m.group(1))

    return "1920x10"

 

print(_get_screen_size())

 

 

例子2:

 

输入一行字符，分别统计出其中英文字母、空格、数字和其它字符的个数。

#!/usr/bin/python

# -*- coding: UTF-8 -*-

importstring

s=raw_input('input a string:\n')

letters=0

space=0

digit=0

others=0

forcins: ####字符串是可迭代的

   ifc.isalpha():

       letters+=1

   elifc.isspace():

       space+=1

   elifc.isdigit():

       digit+=1

   else:

       others+=1

print'char = %d,space = %d,digit = %d,others = %d'%(letters,space,digit,others)

 

 

例子3: 统计一句话中每个单词出现的次数

str1 = "Man who run in front of car, get tired.Man who run behind car, get exhausted."
#str1 = input("请输入要查询的字符：")

worldList1 = str1.split()
worldList2 = []
worldDict3 = {}

print(worldList1)

for word1 in worldList1:
    lastchar = word1[-1:]
    if lastchar in [",",".","!","?",":"]:
        word2 = word1.rstrip(lastchar)
    else:
        word2 = word1
    worldList2.append(word2.lower())
print(worldList2)

for word2 in worldList2:
    worldDict3[word2] = worldDict3.get(word2,0)+1


keyList = worldDict3.keys()
print(keyList)
for key in keyList:
    print ("%-10s %d" % (key, worldDict3[key]))

例子4:统计出每个IP的访问量有多少？（从日志文件中查找）

#!/usr/bin/env python

#!coding=utf-8

list = []

f = file('/tmp/1.log')

str1 = f.readlines() 

f.close() 

for i in str1:

    ip =  i.split()[0]

    list.append(ip) 

list_num = set(list)

for j in list_num: 

    num = list.count(j) 

    print '%s : %s' %(j,num)

例子5:如何判断一个字符串是回文字符串，并对你的写出的方法进行测试

　　　　

def func(str):

    if not isinstance(str,basestring):

        print "{} 不是字符串类型 ".format(str)

    elif len(str)-1<=0:

        print "{} is not 回文字符串".format(str)

    else:

        i=0

        j=len(str)-1

        while i<j:

            if str[i]!=str[j]:

                break

            i+=1

            j-=1

        if i<j:

            print "{} is not 回文字符串".format(str)

        else:

            print "{} is 回文字符串".format(str)