从windows获取连接的USB设备列表_python或cmd

参考：https://www.cnpython.com/qa/454796

### CMD
示例一：
`wmic path CIM_LogicalDevice where "Description like 'USB%'" get /value`

示例二 PowerShell命令：
`PowerShell -Command "& {Get-PnpDevice | Select-Object Status,Class,FriendlyName,InstanceId | ConvertTo-Json}"`

### python3
示例一：
```python
import subprocess, json,time

out = subprocess.getoutput("PowerShell -Command \"& {Get-PnpDevice | Select-Object Status,Class,FriendlyName,InstanceId | ConvertTo-Json}\"")
j = json.loads(out)
for dev in j:
    print(dev['Status'], dev['Class'], dev['FriendlyName'], dev['InstanceId'] )
time.sleep(100)
```

示例二：
```python
import time
import win32com.client
def get_usb_device():
    try:
        usb_list = []
        wmi = win32com.client.GetObject("winmgmts:")
        for usb in wmi.InstancesOf("Win32_USBHub"):
        ## for usb in wmi.InstancesOf("Win32_PnPEntity"):
            print(usb.DeviceID)
            print(usb.description)
            usb_list.append(usb.description)

print(usb_list)
        return usb_list
    except Exception as error:
        print('error', error)

time.sleep(100)
get_usb_device()
```

示例三：
在Windows 10上使用Python 3和pywin32，获取所有驱动器号和类型：
[python win32api模块](https://zhuanlan.zhihu.com/p/137092665 "python win32api模块")：如果提示 没有名为“win32api”的模块，则需安装 pip install pypiwin32
```python
import os
import win32api
import win32file
os.system("cls")
drive_types = {
                win32file.DRIVE_UNKNOWN : "Unknown\nDrive type can't be determined.",
                win32file.DRIVE_REMOVABLE : "Removable\nDrive has removable media. This includes all floppy drives and many other varieties of storage devices.",
                win32file.DRIVE_FIXED : "Fixed\nDrive has fixed (nonremovable) media. This includes all hard drives, including hard drives that are removable.",
                win32file.DRIVE_REMOTE : "Remote\nNetwork drives. This includes drives shared anywhere on a network.",
                win32file.DRIVE_CDROM : "CDROM\nDrive is a CD-ROM. No distinction is made between read-only and read/write CD-ROM drives.",
                win32file.DRIVE_RAMDISK : "RAMDisk\nDrive is a block of random access memory (RAM) on the local computer that behaves like a disk drive.",
                win32file.DRIVE_NO_ROOT_DIR : "The root directory does not exist."
              }

drives = win32api.GetLogicalDriveStrings().split('\x00')[:-1]
# GetLogicalDriveStrings：获取逻辑驱动字符串

for device in drives:
    type = win32file.GetDriveType(device)

print("Drive: %s" % device)
    print(drive_types[type])
    print("-"*72)

os.system('pause')
```
你的USB设备的类型是win32file.DRIVE_REMOVABLE-所以这就是你要找的。您可以插入一个if条件来只处理这样的可移动设备，而不是打印所有的驱动器和类型。在

请注意：SD卡和其他可移动存储介质具有相同的驱动器类型。