python3 获取电脑磁盘、CPU、内存使用情况

import psutil   # cd C:\Python36-32\Scripts  pip install psutil

# 获取本机磁盘使用率和剩余空间G信息
def get_disk_info():
    # 循环磁盘分区
    content = ""
    for disk in psutil.disk_partitions():
        # 读写方式 光盘 or 有效磁盘类型
        if 'cdrom' in disk.opts or disk.fstype == '':
            continue
        disk_name_arr = disk.device.split(':')
        disk_name = disk_name_arr[0]
        disk_info = psutil.disk_usage(disk.device)
        # 磁盘剩余空间，单位G
        free_disk_size = disk_info.free//1024//1024//1024
        # 当前磁盘使用率和剩余空间G信息
        info = "%s盘使用率：%s%%， 剩余空间：%iG" % (disk_name, str(disk_info.percent), free_disk_size)
        # print(info)
        # 拼接多个磁盘的信息
        content = content + info
    print(content)
    # return content

# cpu信息
def get_cpu_info():
    cpu_percent = psutil.cpu_percent(interval=1)
    cpu_info = "CPU使用率：%i%%" % cpu_percent
    print(cpu_info)
    # return cpu_info

# 内存信息
def get_memory_info():
    virtual_memory = psutil.virtual_memory()
    used_memory = virtual_memory.used/1024/1024/1024
    free_memory = virtual_memory.free/1024/1024/1024
    memory_percent = virtual_memory.percent
    memory_info = "内存使用：%0.2fG，使用率%0.1f%%，剩余内存：%0.2fG" % (used_memory, memory_percent, free_memory)
    print(memory_info)
    # return memory_info

get_disk_info()
get_cpu_info()
get_memory_info()