仅需8道题轻松掌握Python Web应用开发 Python技能树征题_pytjon web的编程练习题

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B.

import requests
from urllib import parse
url = "https://www.python.org/search/"
params = {'q': 'list'}
query = parse.urlencode(params)
response = requests.get(url+'?'+query)
print(response.text)

C.

import requests
from urllib import parse
url = "https://www.python.org/search/"
params = {'q': 'list'}
query = parse.urlencode(params)
response = requests.get(url+query)
print(response.text)

D.

from urllib import parse, request
url = "https://www.python.org/search/"
params = {'q': 'list'}
query = parse.urlencode(params)
response = request.get(url+'?'+query)
print(response.read())

正确答案： B

2. 第 2 题：构建 TCP 服务器

知识点描述：构建 TCP 服务器，通过 TCP 协议和客户端通信。
问题描述：编写程序创建一个简单 TCP 应答服务器，请从以下选项中选出你认为正确的程序：
A.

from socketserver import BaseRequestHandler, TCPServer
class MessageHandler(BaseRequestHandler):
    def handle(self):
        print("Get connection from {}".format(self.client_address))
        while True:
            message = self.request.recv(2048)
            if not message:
                break
            else:
                self.request.send("Success")
if __name__ == "\_\_main\_\_":
    server = MessageHandler(('', 5000), TCPServer)
    server.serve_forever()

B.

from socketserver import BaseRequestHandler, TCPServer
class MessageHandler(BaseRequestHandler):
    def handle(self):
        print("Get connection from {}".format(self.client_address))
        while True:
            message = self.request.recv(2048)
            if not message:
                break
            else:
                self.request.send("Success")
if __name__ == "\_\_main\_\_":
    server = TCPServer(('', 5000), MessageHandler)

C.

from socketserver import BaseRequestHandler, TCPServer
class MessageHandler(BaseRequestHandler):
    def handle(self):
        print("Get connection from {}".format(self.client_address))
        while True:
            message = self.request.recv(2048)
            if not message:
                break
            else:
                self.request.send("Success")
if __name__ == "\_\_main\_\_":
    server = MessageHandler()
    server.serve_forever()

D.

from socketserver import BaseRequestHandler, TCPServer
class MessageHandler(BaseRequestHandler):
    def handle(self):
        print("Get connection from {}".format(self.client_address))
        while True:
            message = self.request.recv(2048)
            if not message:
                break
            else:
                self.request.send("Success")
if __name__ == "\_\_main\_\_":
    server = TCPServer(('', 5000), MessageHandler)
    server.serve_forever()

正确答案： D

3. 第 3 题：构建 UDP 服务器

知识点描述：构建 UDP 服务器，通过 UDP 协议和客户端通信。
问题描述：编写程序创建一个简单 UDP 应答服务器，请从以下选项中选出你认为正确的程序：
A.

from socketserver import BaseRequestHandler, UDPServer
from datetime import datetime
class MessageHandler(BaseRequestHandler):
    def handle(self):
        print("Get connection from {}".format(self.client_address))
        while True:
            message = self.request.recv(2048)
            if not message:
                break
            else:
                response = (str(datetime.today()) + ': SUCCESS!')
                self.request.send(response)
if __name__ == "\_\_main\_\_":
    server = UDPServer(('', 5000), MessageHandler)
    server.serve_forever()

B.

from socketserver import BaseRequestHandler, UDPServer
from datetime import datetime
class MessageHandler(BaseRequestHandler):
    def handle(self):
        print("Get connection from {}".format(self.client_address))
        while True:
            message = self.request.recv(2048)
            if not message:
                break
            else:
                response = (str(datetime.today()) + ': SUCCESS!')
                self.request.sendto(response)
if __name__ == "\_\_main\_\_":
    server = UDPServer(('', 5000), MessageHandler)
    server.serve_forever()

C.

from socketserver import BaseRequestHandler, UDPServer
from datetime import datetime
class MessageHandler(BaseRequestHandler):
    def handle(self):
        print("Get connection from {}".format(self.client_address))
        message, sock = self.request
        response = (str(datetime.today()) + ': SUCCESS!')
        sock.sendto(response.encode('ascii'), self.client_address)
if __name__ == "\_\_main\_\_":
    server = UDPServer(('', 5000), MessageHandler)
    server.serve_forever()

D.

from socketserver import BaseRequestHandler, UDPServer
from datetime import datetime
class MessageHandler(BaseRequestHandler):
    def handle(self):
        print("Get connection from {}".format(self.client_address))
        message, sock = self.request
        response = (str(datetime.today()) + ': SUCCESS!')
        sock.send(response.encode('ascii'), self.client_address)
if __name__ == "\_\_main\_\_":
    server = UDPServer(('', 5000), MessageHandler)
    server.serve_forever()

正确答案： C

4. 第 4 题：构建 REST 接口

知识点描述：使用 REST 接口通过网络远程控制或访问 Web 应用程序。
问题描述：构建一个标准的 REST 风格的 Web API，请从以下选项中选出你认为正确的选项：
A.

import cgi
from datetime import datetime
def not\_found(environ, start_response):
    start_response('404 Not Found', [('Content-Type', 'text/plain')])
    return ['Not Found']
class Route:
    def \_\_init\_\_(self):
        self.route = {}
    def \_\_call\_\_(self, environ, start_response):
        path = environ['PATH\_INFO']
        params = cgi.FieldStorage(environ['wsgi.input'], environ=environ)
        method = environ['REQUEST\_METHOD'].lower()
        environ['params'] = {k: params.getvalue(k) for k in params}
        handler = self.route.get((method, path), not_found)
        return handler(environ, start_response)
    def register(self, method, path, function):
        self.route[method.lower(), path] = function
        return function
_hello_user = """
<html>
 <head>
 <title>Hello {user}</title>
 </head>
 <body>
 <h1>{con\_time}: Hello {user}!</h1>
 </body>
</html>
"""
def hello\_user(environ, start_response):
    start_response('200 OK', [('Content-type', 'text/html')])
    params = environ['params']
    response = _hello_user.format(user=params.get('user'), con_time=datetime.now())
    yield response.encode('utf-8')
if __name__ == '\_\_main\_\_':
    from wsgiref.simple_server import make_server
    route = Route()
    route.register('GET', '/hello', hello_user)
    httpd = make_server('', 8080, route)
    print('Running on 8080')
    httpd.serve_forever()

B.

import cgi
from datetime import datetime
def not\_found(environ, start_response):
    start_response('404 Not Found', [('Content-Type', 'text/plain')])
    return [b'Not Found']
class Route:
    def \_\_init\_\_(self):
        self.route = {}
    def \_\_call\_\_(self, environ, start_response):
        path = environ['PATH\_INFO']
        params = cgi.FieldStorage(environ['wsgi.input'], environ=environ)
        method = environ['REQUEST\_METHOD'].lower()
        environ['params'] = {k: params.getvalue(k) for k in params}
        handler = self.route.get((method, path), not_found)
        return handler(environ, start_response)
    def register(self, method, path, function):
        self.route[method.lower(), path] = function
        return function
_hello_user = """
<html>
 <head>
 <title>Hello {user}</title>
 </head>
 <body>
 <h1>{con\_time}: Hello {user}!</h1>
 </body>
</html>
"""
def hello\_user(environ, start_response):
    start_response('200 OK', [('Content-type', 'text/html')])
    params = environ['params']
    response = _hello_user.format(user=params.get('user'), con_time=datetime.now())
    yield response.encode('utf-8')
if __name__ == '\_\_main\_\_':
    from wsgiref.simple_server import make_server
    route = Route()
    route.register('/hello', hello_user)
    httpd = make_server('', 8080, route)
    print('Running on 8080')
    httpd.serve_forever()

C.

import cgi
from datetime import datetime
def not\_found(environ, start_response):
    start_response('404 Not Found', [('Content-Type', 'text/plain')])
    return [b'Not Found']
class Route:
    def \_\_init\_\_(self):
        self.route = {}
    def \_\_call\_\_(self, environ, start_response):
        path = environ['PATH\_INFO']
        params = cgi.FieldStorage(environ['wsgi.input'], environ=environ)
        method = environ['REQUEST\_METHOD'].lower()
        environ['params'] = {k: params.getvalue(k) for k in params}
        handler = self.route.get((method, path), not_found)
        return handler(environ, start_response)
    def register(self, method, path, function):
        function = self.route[method.lower(), path]
        return function
_hello_user = """
<html>
 <head>
 <title>Hello {user}</title>
 </head>
 <body>
 <h1>{con\_time}: Hello {user}!</h1>
 </body>
</html>
"""
def hello\_user(environ, start_response):
    start_response('200 OK', [('Content-type', 'text/html')])
    params = environ['params']
    response = _hello_user.format(user=params.get('user'), con_time=datetime.now())
    yield response.encode('utf-8')
if __name__ == '\_\_main\_\_':
    from wsgiref.simple_server import make_server
    route = Route()
    route.register('GET', '/hello', hello_user)
    httpd = make_server('', 8080, route)
    print('Running on 8080')
    httpd.serve_forever()

D.

import cgi
from datetime import datetime
def not\_found(environ, start_response):
    start_response('404 Not Found', [('Content-Type', 'text/plain')])
    return [b'Not Found']
class Route:
    def \_\_init\_\_(self):
        self.route = {}
    def \_\_call\_\_(self, environ, start_response):
        path = environ['PATH\_INFO']
        params = cgi.FieldStorage(environ['wsgi.input'], environ=environ)
        method = environ['REQUEST\_METHOD'].lower()
        environ['params'] = {k: params.getvalue(k) for k in params}
        handler = self.route.get((method, path), not_found)
        return handler(environ, start_response)
    def register(self, method, path, function):
        self.route[method.lower(), path] = function
        return function
_hello_user = """
<html>
 <head>
 <title>Hello {user}</title>
 </head>
 <body>
 <h1>{con\_time}: Hello {user}!</h1>
 </body>
</html>
"""
def hello\_user(environ, start_response):
    start_response('200 OK', [('Content-type', 'text/html')])
    params = environ['params']
    response = _hello_user.format(user=params.get('user'), con_time=datetime.now())
    yield response.encode('utf-8')
if __name__ == '\_\_main\_\_':
    from wsgiref.simple_server import make_server
    route = Route()
    route.register('GET', '/hello', hello_user)
    httpd = make_server('', 8080, route)
    print('Running on 8080')
    httpd.serve_forever()

正确答案： D

5. 第 5 题：客户端认证

知识点描述：在服务器中实现客户端连接认证功能。
问题描述：实现一个连接握手，用于进行高效认证，请从以下选项中选出你认为正确的选项：
A.

import hmac
import os
def client\_auth(conn, secret_key):
    message = conn.recv(64)
    hash = hmac.new(secret_key, message)
    digest = hash.digest()
    conn.send(digest)
def server\_auth(conn, secret_key):
    message = os.urandom(64)
    conn.send(message)
    hash = hmac.new(secret_key, message)
    digest = hash.digest()
    resp = conn.recv(len(digest))
    return digest == resp

B.

import hmac
import os
def client\_auth(conn, secret_key):
    message = conn.recv(64)
    hash = hmac.new(secret_key, message)
    digest = hash.digest()
    conn.send(digest)
def server\_auth(conn, secret_key):
    message = os.urandom(64)
    conn.send(message)
    hash = hmac.new(secret_key, message)
    digest = hash.digest()
    resp = conn.recv(len(digest))
    return hmac.compare_digest(digest, resp)

C.

import hmac
import os
def client\_auth(conn, secret_key):
    message = conn.recv(64)
    hash = hmac.new(secret_key, message)
    digest = hash.digest()
    conn.send(digest)
def server\_auth(conn, secret_key):
    message = os.urandom(64)
    conn.send(message)
    hash = hmac.new(secret_key, message)
    digest = hash.digest()
    resp = conn.recv(digest)
    return hmac.compare_digest(digest, resp)

D.

import hmac
import os
def client\_auth(conn, secret_key):
    message = conn.recv(64)
    hash = hmac.new(secret_key, message)
    digest = hash.digest()
    return digest
def server\_auth(conn, secret_key):
    message = os.urandom(64)
    conn.send(message)
    hash = hmac.new(secret_key, message)
    digest = hash.digest()
    resp = conn.recv(len(digest))
    return hmac.compare_digest(digest, resp)

正确答案： B

6. 第 6 题：远程方法的调用

知识点描述：执行运行在服务器上的 Python 程序中的函数或方法。
问题描述：实现一个远程调用，以在远程服务器上执行简单的加减运算，请从以下选项中选出你认为正确的答案：
A.

from xmlrpc.server import SimpleXMLRPCServer
class AlgFunction:
    _rpc_methods = ['add', 'sub', 'show']
    def \_\_init\_\_(self, address):
        self._result = []
        self._server = SimpleXMLRPCServer(address, allow_none=False)
        for name in self._rpc_methods:
            self._server.register_function(getattr(self, name))
    def add(self, num_a, num_b):
        self._result.append(num_a + num_b)
        return num_a + num_b
    def sub(self, num_a, num_b):
        self._result.append(num_a - num_b)
        return num_a - num_b
    def show(self):
        return self._result
    def serve\_forever(self):
        self._server.serve_forever()
if __name__ == '\_\_main\_\_':
    algServer = AlgFunction(('', 25000))
    algServer.serve_forever()

B.

from xmlrpc.server import SimpleXMLRPCServer
class AlgFunction:
    _rpc_methods = ['add', 'sub', 'show']
    def \_\_init\_\_(self, address):
        self._result = []
        self._server = SimpleXMLRPCServer(address, allow_none=False)
        for name in self._rpc_methods:
            self._server.register_function(getattr(self, name))
    def add(self, num_a, num_b):
        self._result.append(num_a + num_b)
        return num_a + num_b
    def sub(self, num_a, num_b):
        self._result.append(num_a - num_b)
        return num_a - num_b
    def show(self):
        return self._result
if __name__ == '\_\_main\_\_':
    algServer = AlgFunction(('', 25000))
    algServer.serve_forever()

C.

from xmlrpc.server import SimpleXMLRPCServer
class AlgFunction:
    _rpc_methods = ['add', 'sub', 'show']
    def \_\_init\_\_(self, address):
        self._result = []
        self._server = SimpleXMLRPCServer(address, allow_none=False)
        for name in self._rpc_methods:
            self._server.register_function(getattr(self, name))
    def add(self, num_a, num_b):
        self._result.append(num_a + num_b)
        return num_a + num_b
    def sub(self, num_a, num_b):
        self._result.append(num_a - num_b)
        return num_a - num_b
    def show(self):
        return self._result
    def serve\_forever(self):
        self._server.serve_forever()
if __name__ == '\_\_main\_\_':
    algServer = AlgFunction(('', 25000))

D.

from xmlrpc.server import SimpleXMLRPCServer
class AlgFunction:
    _rpc_methods = ['add', 'sub', 'show']
    def \_\_init\_\_(self, address):
        self._result = []
        self._server = SimpleXMLRPCServer(address, allow_none=False)
    def add(self, num_a, num_b):
        self._result.append(num_a + num_b)
        return num_a + num_b
    def sub(self, num_a, num_b):
        self._result.append(num_a - num_b)
        return num_a - num_b
    def show(self):
        return self._result
    def serve\_forever(self):
        self._server.serve_forever()
if __name__ == '\_\_main\_\_':
    algServer = AlgFunction(('', 25000))
    algServer.serve_forever()

img img

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