Python中的子进程Popen和PIPE

import subprocess

# 创建子进程
process = subprocess.Popen(["ls", "-l"], stdout=subprocess.PIPE)

# 获取子进程的输出
output, _ = process.communicate()

# 等待子进程执行完毕
process.wait()

print(output.decode("utf-8"))

import subprocess

# 创建子进程
process = subprocess.Popen(["ls", "-l"], stdout=subprocess.PIPE)

# 获取子进程的输出
output, _ = process.communicate()

# 等待子进程执行完毕
process.wait()

print(output.decode("utf-8"))