import requests
import timestart = time.time()url = 'http://www.xiaohuar.com/'
result = requests.get(url).textprint(result)
print(time.time()-start)

import socketclient = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
url = 'www.xiaohuar.com/'
client.connect((url, 80))
client.send("GET {} HTTP/1.1\r\nHost:{}\r\nConnection:close\r\n\r\n".format('/',80).encode('utf8'))
data = b''
while 1:d = client.recv(1024)if d:data +=delse:breakprint(data)

client.setblocking(False)

try:client.connect((url, 80))
except BlockingIOError as e:　　#处理其他事情pass

import socketclient = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client.setblocking(False)
url = 'www.xiaohuar.com'
try:client.connect((url, 80))
except BlockingIOError as e:passwhile 1:try:client.send("GET {} HTTP/1.1\r\nHost:{}\r\nConnection:close\r\n\r\n".format('/',80).encode('utf8'))breakexcept Exception as e:passdata = b''
while 1:try:d = client.recv(1024)except Exception as e:continueif d:data += delse:breakprint(data)

from selectors import DefaultSelector, EVENT_READ, EVENT_WRITE
import socketselector = DefaultSelector()class Fetcher():def send_msg(self, key):selector.unregister(key.fd)self.client.send("GET {} HTTP/1.1\r\nHost:{}\r\nConnection:close\r\n\r\n".format('/', 80).encode('utf8'))selector.register(self.client.fileno(), EVENT_READ, self.recv)def recv(self, key):d = self.client.recv(1024)if d:self.data += delse:selector.unregister(key.fd)print(self.data.decode('utf8'))def get_url(self, url):self.data = b''try:self.client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)self.client.connect((url, 80))except Exception as e:# 加入另外的逻辑passselector.register(self.client.fileno(), EVENT_WRITE, self.send_msg)def loop_forever():while 1:ready = selector.select()for key, mask in ready:call_back = key.datacall_back(key)if __name__ == '__main__':fet = Fetcher()fet.get_url('www.xiaohuar.com')loop_forever()