web框架介绍，从简到MVC架构解读

# 作者 : 'zhw'

# IDE : PyCharm

# Version:Python3.6

# 创建时间: 2018/5/2 19:34

# coding = 'utf-8'

fromwsgiref.simple_serverimportmake_server

"""

web框架：

MVC： Model(数据库）, View(模版文件),Controller(业务处理)

MTV: Model(数据库), Template(模版文件), View(业务处理)

"""

defhandle_index():

# return ["Hello,Index!".encode("utf-8"), ]

importtime

v =str(time.time())

f =open("index.html",mode="rb")

data = f.read()

data = data.replace(b"@bianliang",v.encode("utf-8")) # Model

return[data,]

defhandle_date():

return["Hello,date!".encode("utf-8"),]

URL_DICT = { ## Controller

"/index": handle_index,

"/date": handle_date,

}

defRunServer(environ,start_response):

# environ 客户端发来的所有数据

# start_response 封装要返回给用户的数据，响应头状态

start_response("200 OK",[("Content-Type","text/html")])

current_url = environ["PATH_INFO"]

# if current_url == "/index":

# return handle_index()

# elif current_url == "/date":

# return handle_date()

func =None

ifcurrent_urlinURL_DICT:

func = URL_DICT[current_url]

iffunc:

returnfunc()

else:

return["404".encode("utf-8"),]

if__name__ =="__main__":

httpd = make_server("",8000,RunServer)

print("Server HTTP on port 8000...")

httpd.serve_forever()