如何正确检查进程是否正在运行并停止它

ps aux | grep <process_name>

tasklist | findstr <process_name>

kill -9 <PID>

taskkill /PID <PID> /F

import subprocess
import os

def check_process_running(process_name):
    if os.name == 'posix':  # Linux
        cmd = f"ps aux | grep {process_name} | grep -v grep"
    elif os.name == 'nt':  # Windows
        cmd = f"tasklist | findstr {process_name}"
    else:
        raise OSError("Unsupported OS")

    result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
    return process_name in result.stdout

def stop_process(process_name):
    if os.name == 'posix':  # Linux
        cmd = f"pgrep {process_name}"
        result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
        pid = result.stdout.strip()
        if pid:
            subprocess.run(f"kill -9 {pid}", shell=True)
    elif os.name == 'nt':  # Windows
        cmd = f"taskkill /IM {process_name} /F"
        subprocess.run(cmd, shell=True)

# 使用示例
process_name = "example_process"
if check_process_running(process_name):
    print(f"{process_name} is running. Stopping it...")
    stop_process(process_name)
else:
    print(f"{process_name} is not running.")