split 数据分隔（巡检）

1 python 的 commands 

在虚拟机Linux中执行shell命令

Python 2.X 后内置的模块，提供了执行命令的简易入口

python 在3.0之后 移除commands命令 取而代之 是 subprocess

Python之系统交互（subprocess）

2 字典遍历

3

4split 分隔

# 以 "-" 分隔
name = 'tony-jone-kiki-bob'
list = name.split("-",1)
print(list)
#['tony', 'jone-kiki-bob']

# 以冒号为分隔
maohao = 'number:1010100101010'
fen = maohao.split(":")[1]
print (fen)  #1010100101010

#splitlines()分隔字符串
u = 'li \n ui \n ok \n ok'
p = u.splitlines()
print (p) #['li', 'ui', 'ok', 'ok']

o = 'li \r ay \r ffff \r ssss'
s = o.splitlines()
print (s)  #['li', 'ay', 'ffff', 'ssss']

#splitlines()分隔字符串 的最后一行

mystr = 'hello\nworld\nand\nhello\npython'
print (mystr)
print(mystr.splitlines())[-1]
#python
#print(mystr.split('\n'))

#以空格分隔
big_hhh = 'big 0.2'
jiji = big_hhh.split()
print (jiji)
#['big', '0.2']

#添加元素
ssddd = 'BIG BIG'
ssddd_dd = 'hhhhhhhhhhh'.join(ssddd.split())
print (ssddd_dd)
#BIGhhhhhhhhhhhBIG

#取倒数第5个
ijiji = "11 22 3 4 55 66 777 8888 99999"
ososdf =ijiji.split()[-5:]
print (ososdf)
#['55','66', '777', '8888', '99999']

Python re提取正则表达式匹配的字符

1 输入第三方模块 import re

re.split

# 分隔空格
import re
ll = "a  b  c    d"
print(re.split(r"[ ]+", ll))
#['a', 'b', 'c', 'd']

”｜“分割
string = "liu|zhi|wei"
name1 = string.split("\\|")
print(name1)
string = "liu|zhi|wei"
name2 = string.split("|")
print(name2)

r = '''%555%%%55'''
print(r.split("%%%"))
#['%555', '55']