從客戶端向服務器發送十六進制數據 - Python

Question

我有這段代碼，我需要使用 TCP 將以下消息發送到服務器：

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((".....", ....))

I need to send the message DATA 60b4151f093363cc4fc2b4575e531bac3e715ae59b33b5136f598514e2adafdb d3234675343aee4c216987a2a1e69c4696610b1eb8b9ce3c54325b65e8de0d98be8074927c0f037288e9eba3530f4a81d43c6c43978ca59d322105bf0054308975b04e3971bb40407e921f294af6bb91eb0cda8571886bca38301e06fc4fd9c5\r\n to the server. 當我嘗試執行此操作時，我得到ERROR Invalid hexadecimal character ' ' 。 我能怎么做？ 謝謝

Answer 1

如果您將文本放在多行中，那么您必須在第一列中開始下一行，因為 Python 不知道您要跳過空格並且它會在DATA中添加空格。

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())

或者你應該在每一行使用引號（但沒有\ ）

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())

因此，您的DATA中有空格，並且將空格從十六進制轉換為數字時遇到了問題-這會給出ERROR Invalid hexadecimal character ' '