方法的封裝 | 手把手教你入門Python之一百一十六

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方法的封裝

import json
from wsgiref.simple_server import make_server


def load_file(file_name, **kwargs):
    try:
        with open('pages/' + file_name, 'r', encoding='utf8') as file:
            content = file.read()
            if kwargs:  # kwargs = {'username':'zhangsan','age':19,'gender':'male'}
                content = content.format(**kwargs)
                # {username},歡迎回來,你今年{age}歲了,你的性别是{gender}.format(**kwargs)
            return content
    except FileNotFoundError:
        print('檔案未找到')


def index():
    return '歡迎來到我的首頁'


def show_test():
    return json.dumps({'name': 'zhangsan', 'age': 18})


def show_demo():
    return load_file('xxxx.txt')


def show_hello():
    return load_file('hello.html')


def show_info():
    return load_file('info.html', username='zhangsan', age=19, gender='male')


def demo_app(environ, start_response):
    path = environ['PATH_INFO']

    status_code = '200 OK'
    if path == '/':
        response = index()
    elif path == '/test':
        response = show_test()
    elif path == '/demo':
        response = show_demo()
    elif path == '/hello':
        response = show_hello()
    elif path == '/info':
        response = show_info()
    else:
        status_code = '404 Not Found'
        response = '頁面走丢了'

    start_response(status_code, [('Content-Type', 'text/html;charset=utf8')])
    return [response.encode('utf8')]


if __name__ == '__main__':
    httpd = make_server('', 8080, demo_app)
    sa = httpd.socket.getsockname()
    print("Serving HTTP on", sa[0], "port", sa[1], "...")
    httpd.serve_forever()           

運作結果：

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