c# - USB设备实例路径usi WMI查询c#

Question

我正在尝试使用以下代码查找 USB 设备实例路径，但总是收到有关错误查询的错误消息。谁能帮帮我？

string strDeviceName = "USB\\VID_";
string Win32_PnPEntity = "Select * From Win32_PnPEntity Where DeviceID like '%" + strDeviceName + "%'" ;
ManagementObjectSearcher mySearcher = new ManagementObjectSearcher(Win32_PnPEntity);
foreach (ManagementObject mobj in mySearcher.Get())
{
    string strDeviceID = mobj["DeviceID"].ToString();
}

Answer 1

string strDeviceName = "USB\\\\VID_"; 或 string strDeviceName = @"USB\\VID_";

这会起作用。你少了一个“\”。