python 入门语法

#!/usr/bin/python
#coding=utf-8
dict={'x':12,'y':34,'z':56}
for (k,v) in dict.items():
print(k,v)

list1=[1,2,3,4,5,6,7,8,9]
for i in range(0,len(list1),2):
print list1[i]

list2=[1,3,4,9,10,11]
list3=[]
for i in list1:
if i not in list2:
list3.append(i)
print list3

namelist1=['ga','xi','na','be','zh']
namelist2=['ga','2','na','be']
set1=set(namelist1+namelist2)
print set1
for i in namelist1:
if i in namelist2:
namelist1.remove(i)
print namelist1

for i in range(1,10,2):
print i,

print namelist2[1:3]
namelist2[1:3]=[]
print namelist2
namelist2.insert(3,'ga')
print namelist2
namelist2.append('ii')
print namelist2

 

import json

s= {'k1':'123'}
print (s,type(s))
result=json.dumps(s)
print (result,type(result))

s = '{"k1":123}'
dic = json.loads(s)
print(dic,type(dic))

 

#!/usr/bin/python

#取一个全数字文件最大值

test="num"
put=open(test,'r')
str=put.readline()
print str
str1=str.split(",")
print str1
list1=map(int,str1)
print list1
maxone=max(list1)
print ("the biggest num is %s,the small num is %s"%(max(list1),min(list1)))