小编use*_*554的帖子

在SQL Server中,如果我执行以下操作:

Difference ('Kennady', 'Kary') : I get 2

如果我做:

Difference ('Kary', 'Kennady') : I get 3.

我认为差异函数会查看引擎盖下的Soundex值,并给出一个0-4的数字,其中有多少个字符是相同的.

SELECT SOUNDEX('Kennady') AS [SoundEx Kennady]
    , SOUNDEX('Kary') AS [SoundEx Kary]
    , DIFFERENCE ('Kennady', 'Kary') AS [Difference Kennady vs Kary]
    , DIFFERENCE ('Kary', 'Kennady') AS [Difference Kary vs Kennady];

我正在尝试从我的一本教科书中进行套接字编程分配.. UDP连接..

UDPServer.py

from socket import *
serverPort = 12000
serverSocket = socket(AF_INET, SOCK_DGRAM)
serverSocket.bind(('', serverPort))
print('The server is ready to receive:')
while 1:
    message, clientAddress = serverSocket.recvfrom(2048)
    modifiedMessage = message.upper()
    serverSocket.sendto(modifiedMessage, clientAddress)

UDPClient.py

from socket import *
serverName = 'localhost'
serverPort = 12000
clientSocket = socket(socket.AF_INET, socket.SOCK_DGRAM)
message = raw_input('Input lowercase sentence:')
clientSocket.sendto(message,(serverName, serverPort))
modifiedMessage, serverAddress = clientSocket.recvfrom(2048)
print (modifiedMessage)
clientSocket.close()

为什么我在运行客户端时遇到此错误？

Traceback (most recent call last):
  File "UDPClient.py", line 4, in <module>
    clientSocket = (socket.AF_INET, socket.SOCK_DGRAM)
AttributeError: type …

我有以下代码.单击apple时,应调用脚本并弹出警报.为什么这不起作用？

检查苹果时,应该调用脚本apple!

<input type="checkbox" name="apple" id="apple" onclick ="apple()" />
<label for = "apple"> Apple ($.59) </label>