python水果与设计模式抽象工厂模式

C:Users
ame>pip
 
Usage:
  pip <command> [options]
 
Commands:
  install                     Install packages.
  download                    Download packages.
  uninstall                   Uninstall packages.
  freeze                      Output installed packages in requirements format.
  list                        List installed packages.
  show                        Show information about installed packages.
  check                       Verify installed packages have compatible dependencies.
……
 

from selenium import webdriver
 
driver = webdriver.Firefox()
 
#访问百度首页
first_url= 'http://www.baidu.com'
print("now access %s" %(first_url))
driver.get(first_url)
 
#访问新闻页面
second_url='http://news.baidu.com'
print("now access %s" %(second_url))
driver.get(second_url)
 
#返回（后退）到百度首页
print("back to  %s "%(first_url))
driver.back()
 
#前进到新闻页
print("forward to  %s"%(second_url))
driver.forward()
 
driver.quit()

info={
'egon':{'pwd':'123','hobbies':['play','music','read']},
'alex':{'pwd':'1234','hobbies':['music','read']},
'wupeiqi':{'pwd':'135','hobbies':['read',]},
}

print(id(info)) #2208947566400
print(id(info['alex']['hobbies'])) #2208949682432
info['alex']['hobbies'].append('play') # 给alex追加play的爱好
print(info)
print(id(info)) #2208947566400
print(id(info['alex']['hobbies'])) #2208949682432