虚拟主机带宽上限

import psutil
import time

def monitor_bandwidth():
    net_io_counters = psutil.net_io_counters()
    bytes_sent = net_io_counters.bytes_sent
    bytes_recv = net_io_counters.bytes_recv
    
    while True:
        time.sleep(1)
        new_net_io_counters = psutil.net_io_counters()
        sent_speed = (new_net_io_counters.bytes_sent - bytes_sent) / 1024
        recv_speed = (new_net_io_counters.bytes_recv - bytes_recv) / 1024
        bytes_sent = new_net_io_counters.bytes_sent
        bytes_recv = new_net_io_counters.bytes_recv
        
        print(f"Sent: {sent_speed:.2f} KB/s, Received: {recv_speed:.2f} KB/s")

if __name__ == "__main__":
    monitor_bandwidth()