将十六进制数据从客户端发送到服务器Python

Question

我有此代码，我需要使用TCP向服务器发送以下消息：

import socket
import sys

def invia_comandi(s):
    while True:
        comando = input("-> ")
        if comando == "ESC":
            s.close()
            sys.exit()
        else:
            s.send("DATA 457f598514e2adafdb\
          d3234675343aee4c216987a2a1e69c4681d43c6c43978ca59d322105bf00543089\
            75b04e3971bb40407e921f294af6bb91eb0cda8571886bca38301e06fc4fd9c5\r\n".encode())
            #s.send(comando.encode())
            data = s.recv(4096)
            print(str(data, "utf-8"))

def conn_sub_server(indirizzo_server):
    try:
        s = socket.socket()
        s.connect(indirizzo_server)
    except socket.error as errore:
        sys.exit()
    invia_comandi(s)

if __name__ == '__main__':
    conn_sub_server((".....", ....))

我需要发送消息DATA 60b4151f093363cc4fc2b4575e531bac3e715ae59b33b5136f598514e2adafdb d3234675343aee4c216987a2a1e69c4696610b1eb8b9ce3c54325b65e8de0d98be8074927c0f037288e9eba3530f4a81d43c6c43978ca59d322105bf0054308975b04e3971bb40407e921f294af6bb91eb0cda8571886bca38301e06fc4fd9c5\r\n 到服务器。当我尝试执行这个时，我得到ERROR Invalid hexadecimal character ' '。 我该怎么办？谢谢

Answer 1

如果将文本放在许多行中，则必须从第一列的下一行开始，因为Python不知道要跳过空格，它会将空格添加到DATA

def invia_comandi(s):
    while True:
        comando = input("-> ")
        if comando == "ESC":
            s.close()
            sys.exit()
        else:
            s.send("DATA 60b4151f093363cc4fc2b4575e531bac3e715ae59b33b5136f598514e2adafdb\
d3234675343aee4c216987a2a1e69c4696610b1eb8b9ce3c54325b65e8de0d98\
be8074927c0f037288e9eba3530f4a81d43c6c43978ca59d322105bf00543089\
75b04e3971bb40407e921f294af6bb91eb0cda8571886bca38301e06fc4fd9c5\r\n".encode())

或者您应该在每一行中使用引号（但不使用\）

def invia_comandi(s):
    while True:
        comando = input("-> ")
        if comando == "ESC":
            s.close()
            sys.exit()
        else:
            s.send("DATA 60b4151f093363cc4fc2b4575e531bac3e715ae59b33b5136f598514e2adafdb"
            "d3234675343aee4c216987a2a1e69c4696610b1eb8b9ce3c54325b65e8de0d98"
            "be8074927c0f037288e9eba3530f4a81d43c6c43978ca59d322105bf00543089"
            "75b04e3971bb40407e921f294af6bb91eb0cda8571886bca38301e06fc4fd9c5\r\n".encode())

所以在DATA中有空格，将空格从十六进制转换为数字有问题，这就产生了ERROR Invalid hexadecimal character ' '