python3 运维脚本：使用psutil模块监控linux系统

使用python编写一个监控脚本，放在Linux系统运行。监控要求如下：
1.显示当前时间
2.脚本运行之后监控10s，每隔一秒钟输出一次信息
3.显示当前系统CPU逻辑核数、平均使用率
4.显示总内存大小（单位G），内存使用率
5.显示根目录大小（单位G），根目录使用率
6.本机IP地址是多少，网络使用情况，收发了多少M数据

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#!/usr/bin/env python3   import psutil import datetime import time   def sys_monitor():     start_time = time.time()     # system current time     # %F as %Y-%m-%d, %T as %H:%M:%S     current_time = datetime.datetime.now().strftime("%F %T")     print(f'current time: {current_time}')       # CPU logical cores number     cpu_count = psutil.cpu_count()     # cpu usage rate, refresh frequency is 0.5s     cup_per = psutil.cpu_percent(interval=0.5)     print(f'cpu logical cores number is {cpu_count}, cpu usage rate is {cup_per}%')       # memory info     memory_info = psutil.virtual_memory()     # total memory GB     memory_total = round(memory_info.total / 1024 / 1024 / 1024, 2)     # memory usage rate     #memory_per = (memory_total - memory_info.available) / memory_total * 100     memory_per = memory_info.percent     print(f'total memory is {memory_total}G, memory usage rate is {memory_per}%')       # disk info     # root (/) related disk info     disk_info = psutil.disk_usage("/")     #print(disk_info)     # root (/) size     disk_total = disk_info.total     # root (/) usage rate     disk_per = float(disk_info.used / disk_total * 100)     print(f'size of root(/) is {round(disk_total / 1024 /1024 /1024, 2)}G, usage rate of root(/) is {round(disk_per,2)}%')       # network info     # network io     net = psutil.net_io_counters()     #print(net)     # nic(network interface card) ip     net_ipy = psutil.net_if_addrs()     #print(f"net_ipy {net_ipy}")     net_ip = net_ipy['ens33'][0][1]     print(f'local ip on ens33 is {net_ip}')     # received data     net_recv = float(net.bytes_recv / 1024 /1024)     # send data     net_sent = float(net.bytes_sent /1024 /1024)     print(f'network received data {round(net_recv,2)}M Bytes, network send data {round(net_sent,2)}M Bytes')       # output every 1s     end_time = time.time()     time.sleep(1- (end_time - start_time))   count = 0 # run in 10s while count < 10:     count += 1     print(f'execute times: {count}'.center(50,'*'))     sys_monitor()