Ping的Python控制台和文本输出，包括\ n \ r

Question

我不知道发生了什么，但是当我在控制台或文本文件上打印时，换行符（\ n）无法正常运行，而是显示在字符串中。知道如何在控制台和文本文件中避免这种情况吗？我的代码：import subprocesshosts_file = open("hosts.txt","r")lines = hosts_file.readlines()for line in lines:    line = line.strip()    ping = subprocess.Popen(["ping", "-n", "3",line],stdout = subprocess.PIPE,stderr = subprocess.PIPE)    out, error = ping.communicate()    out = out.strip()    error = error.strip()    output = open("PingResults.txt",'a')    output.write(str(out))    output.write(str(error))    print(out)    print(error)hosts_file.close()输出：b'Pinging 192.168.0.1 with 32 bytes of data:\r\nRequest timed out.\r\nRequest timed out.\r\nRequest timed out.\r\n\r\nPing statistics for 192.168.0.1:\r\n    Packets: Sent = 3, Received = 0, Lost = 3 (100% loss),'b''b'Pinging 192.168.0.2 with 32 bytes of data:\r\nRequest timed out.\r\nRequest timed out.\r\nRequest timed out.\r\n\r\nPing statistics for 192.168.0.2:\r\n    Packets: Sent = 3, Received = 0, Lost = 3 (100% loss),'b''b'Pinging 192.168.0.3 with 32 bytes of data:\r\nRequest timed out.\r\nRequest timed out.\r\nRequest timed out.\r\n\r\nPing statistics for 192.168.0.3:\r\n    Packets: Sent = 3, Received = 0, Lost = 3 (100% loss),'b''b'Pinging 192.168.0.4 with 32 bytes of data:\r\nRequest timed out.\r\nRequest timed out.\r\nRequest timed out.\r\n\r\nPing statistics for 192.168.0.4:\r\n    Packets: Sent = 3, Received = 0, Lost = 3 (100% loss),'b''b'Pinging 192.168.0.5 with 32 bytes of data:\r\nRequest timed out.\r\nRequest timed out.\r\nReply from 3.112.3.214: Destination host unreachable.\r\n\r\nPing statistics for 192.168.0.5:\r\n    Packets: Sent = 3, Received = 1, Lost = 2 (66%loss),'b''主机文件：192.168.0.1192.168.0.2192.168.0.3192.168.0.4192.168.0.5

Answer 1

问题是您要打印出Python 3bytes对象，该Python无法自动转换为str对象，因为无法确定字符编码是什么。

您必须使用bytes对象的decode()方法将其转换为字符串，告诉Python编码是什么...

import subprocess

hosts_file = open("hosts.txt","r")

lines = hosts_file.readlines()

for line in lines:

    line = line.strip()

    ping = subprocess.Popen(["ping", "-n", "3",line],stdout = subprocess.PIPE,stderr = subprocess.PIPE)

    out, error = ping.communicate()

    out = out.strip()

    error = error.strip()

    output = open("PingResults.txt",'a')

    output.write(str(out))

    output.write(str(error))

    print(out.decode('utf-8'))

    print(error.decode('utf-8'))

hosts_file.close()