python多线程与os系统，不超过K个并行命令

import threading
import os

def execute_command(command):
    os.system(command)

def run_parallel_commands(commands, k):
    threads = []
    for i in range(0, len(commands), k):
        for j in range(i, min(i+k, len(commands))):
            thread = threading.Thread(target=execute_command, args=(commands[j],))
            threads.append(thread)
            thread.start()
        for thread in threads:
            thread.join()

# 示例命令列表
commands = ['command1', 'command2', 'command3', 'command4', 'command5']

# 设置并行执行的线程数
k = 2

run_parallel_commands(commands, k)