python第七天

上周出现了意外情况延迟了好几天，这几天又在整云平台，真是累成汪汪了，还有个叫ossim的安全管理平台，一个可以让服务器红屏的系统，北方还真是第一次见到红屏，涨姿势了啊~~~蓝屏大家肯定都已经习惯了嘛，当时以为要爆炸了。

今天早上公司又在开洗脑大会，北方还怕你不成啊？来啊，互相伤害啊！，企业文化跟中二病你觉得我会选哪个

1.configparser模块：以后可以对该类型的配置文件进行操作了呦

#!/usr/bin /env python
import configparser
config = configparser.ConfigParser()
config.read('a.txt', encoding='utf-8')
ret = config.sections()                     #获取所有节点名
print(ret)

ret = config.options('test1')               #获取指定节点下的key
print(ret)

ret = config.get('test1', 'k1')               #获取指定节点下的值
print(ret)

has = config.has_section('test1')               #验证是否包含节点
print(has)

has = config.has_section('tttt1')               #验证是否包含节点
print(has)

config.add_section('tttt1')                     #加节点(节点不可以存在)
config.write(open('a.txt', 'w', encoding='utf-8'))

config.remove_section('tttt1')                  #删节点（节点存在）
config.write(open('a.txt', 'w', encoding='utf-8'))

has = config.has_option('tttt1', 'k1')               #验证是否包含节点内的key
print(has)

config.add_option('tttt1', 'k1')                     #加节点内key（节点存在）
config.write(open('a.txt', 'w'))

config.remove_option('tttt1', 'k1')                  #删节点内key（节点存在）
config.write(open('a.txt', 'w'))

[test1]
k1 = v1
k2 = 123

[test2]
k1 = ace

[test3]
k1 = kkk

2.xml模块：xml是一种语法，类似于网页返回字符串后用json来格式化，获取数据后继续我们的操作

#!/usr/bin /env python
from xml.etree import ElementTree as ET
tree = ET.parse('a.xml')
root = tree.getroot()                           #获取根节点
#print(root)
for child in root:                              #打印子节点
    # print(child.tag, child.attrib)
     for cchild in child:
         print(cchild.tag, cchild.attrib,cchild.text)       #命名，标注，值

C:UsersAdministratorAppDataLocalProgramsPythonPython35python.exe C:/Users/Administrator/PycharmProjects/ACE/study7/s2.py
rank {'updatae': 'yes'} 2
year {} 2016
mounth {} None

Process finished with exit code 0

<data title="CEO" age="24">
    <country name="china" age="22">
        <rank updatae="yes">2</rank>
        <year>2016</year>>
        <mounth />
    </country>
    <country name="abc" />
</data>

#!/usr/bin /env python
from xml.etree import ElementTree as ET
from xml.dom import minidom


def prettify(elem):
    """
    将节点转换成字符串
    :param elem:节点
    :return:字符串
    """
    r_string = ET.tostring(elem, encoding='utf-8')
    rep = minidom.parseString(r_string)
    return rep.toprettyxml(indent='	')


root = ET.Element('family')                                 #根节点命名

son1 = ET.Element('son', {'name': 'son1'})                  #子节点命名
son2 = ET.Element('son', {'name': 'son2'})

if __name__ == '__main__':
    grandson1 = ET.Element('grandson', {'name': 'grandson1'})   #孙节点命名...
grandson2 = ET.Element('grandson', {'name': 'grandson2'})
son1.append(grandson1)                                             #子节点添加孙节点
son2.append(grandson2)

root.append(son1)                                                   #根节点添加子节点
root.append(son2)

# tree = ET.ElementTree(root)                                         #将整体写入文件（一行形式）
# tree.write('b.xml', encoding='utf-8', short_empty_elements=False)

raw_str = prettify(root)

with open('b.xml', 'w', encoding='utf-8') as f:
    f.write(raw_str)

<?xml version="1.0" ?>
<family>
    <son name="son1">
        <grandson name="grandson1"/>
    </son>
    <son name="son2">
        <grandson name="grandson2"/>
    </son>
</family>

 3.面向对象！！！！！！！！！

#!/usr/bin /env python
class F1:

    def show(self):
        print('show')

    def foo(self):
        print(self.name)


class F2(F1):

    def __init__(self, name):
        self.name = name

    def bar(self):
        print('bar')

    def show(self):
        print('show 2')

obj = F2('ace')
obj.foo()

C:UsersAdministratorAppDataLocalProgramsPythonPython35python.exe C:/Users/Administrator/PycharmProjects/ACE/study7/s6.py
ace

Process finished with exit code 0

#!/usr/bin /env python
class c1:

    def __init__(self, name, obj):
        self.name = name
        self.obj = obj

    def show(self):
        print(self.name)
        print(self.obj)


class c2:

    def __init__(self, name, age):
        self.name = name
        self.age = age

    def show(self):
        print(self.name)
        print(self.age)
        return 'meng'


class c3:
    def __init__(self, a1):
        self.aaa = a1


c2_obj = c2('a', '11')
c1_obj = c1('ace', c2_obj)
print(c1_obj.obj.age)
c3_obj = c3(c1_obj)
print(c3_obj.aaa.obj.name)
print(c3_obj.aaa.obj.show())

C:UsersAdministratorAppDataLocalProgramsPythonPython35python.exe C:/Users/Administrator/PycharmProjects/ACE/study7/s5.py
11
a
a
11
meng

Process finished with exit code 0

#!/usr/bin /env python
class SQLHELP:
    def __init__(self, a1, a2, a3):
        self.hhost = a1
        self.uusername = a2
        self.ppassword = a3

    def fetch(self, sql):
        print(self.hhost)
        print(self.uusername)
        print(self.ppassword)
        print(sql)

obj1 = SQLHELP('localhost', 'root', 'redhat')
obj1.fetch('select * from *')

我草，看不懂啊....其实我懂，但是我不知道怎么写.....反正很nb就是了.....

我就不说话，我就发图