chlinwei的博客

type 类继承object类,由type自己实例化而来object由type类实例化而来,object没有基类list类有type类实例化来,继承自object类mylist由list类实例化而来,不继承任何类type(list)查看list是由谁实例化的 或者list.__class__list.__base__查看list的基类(超类)

yum install libxml2 libxslt  libxml2-devel libxslt-develpip2.7 install lxml

def b(): b = 1 def bchange(): b += 1 #UnboundLocalError: local variable 'b' referenced before assignment bchange() print bPython 3:def b(): b = 1 def bchange(

re.match#coding:utf-8#从首字母开始匹配,匹配一次就结束import res= '23432werwre2342werwrew' p = r'(\d*)([a-zA-Z]*)'m = re.match(p,s)print(m.group()) #返回所有匹配内容 23432werwreprint(m.group(0)) #和group()一样 234

yum install tesseract tesseract-osd tesseract-langpack-chi_sim tesseract-langpack-chi_tra

在C:\Python27\Lib\site-packages 目录下新建sitecustomize.py 文件import sys    sys.setdefaultencoding('gb2312')  这样就好了

install mysqlclientsetting:'ENGINE': 'django.db.backends.mysql', 'NAME':'mysql',setting里修改为 ALLOWED_HOSTS = ['118.89.54.105']python3 manage.py runserver 10.135.125.123:80001.

#coding:utf-8x = '中文' #这里的'中文'是utf-8的编码print repr(x) #'\xe4\xb8\xad\xe6\x96\x87' #计算机里存储的是这样的,和'中文'等价print '\xe4\xb8\xad\xe6\x96\x87' #中文y = u'中文' #这里'中文'是unicode的编码print repr(y) #u'\u4e2d