import subprocess

# 启动子进程
process = subprocess.Popen(['cmd'], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

while True:
    output = process.stdout.readline()  # 读取子进程的输出并解码为字符串
    if output == '' and process.poll() is not None:  # 如果子进程已经结束并且没有输出
        break
    if output:  # 如果子进程有输出
        print(output.strip())  # 输出子进程的输出

实际运行后，循环process.stdout.readline()读入多行后，一直读到空就阻塞了
也就是说卡在output = process.stdout.readline()，
if output == '' and process.poll() is not None:起不到作用

咋办
--
修改:ZHMZFFL FROM 101.24.89.*
FROM 101.24.89.*