python 数据

number： 1,2,...n

import math

import random

random.random()

random.choice( [1,2,3,4,5,6] )

string：str1='heha da'

'%s is a big fool %s'% ('jiang','that is absolutely')

#序列的method

str1[1]:'e'

slice:str1[1:4]

+,*

#string method

str1.find('a')

str2=str1.replace('ha','sb')

list：list1=[1,'asdf','a',...]

#list method

list1.append( 'x' )#栈底插入

list1.pop(2)#弹出index=2的元素

list1.sort()#对象的方法，只对对象自身产生作用，整体是个函数，没有返回值

list1.reverse()

dict：{host:'192.168.1.102',device_num:5,....}

dict1={'food':'spam','quantity':4}

dict1['quantity']+=1

tuple：(1,'fixed one',...)

set: set( ['x','y','z'] )

X&Y X|Y X-Y

file: file1=open('data.txt','w')

file1.write('Hello\n')

file1.close()

file2=open('data.txt','r')

text=file2.read()

print text

#user def type(class)

#coding=utf-8

class worker:

def _init_(self,name,pay):

self.name=name

self.pay=pay

def lastname(self):

return self.name.split[-1]

def givenrise(self):

return self.pay

worker1=worker('jonathan',10000)

print worker1.lastname()+"\n"+worker1.givenrise()