## 类的使用
com.gprinter.io.PortManager

- 使用PortManager的程序包
  程序包 | 说明
  --- | ---
  com.gprinter.io |

- - ### com.gprinter.io中PortManager的使用

    com.gprinter.io中PortManager的子类
    限定符和类型 | 类和说明
    --- | ---
    `class` | `BluetoothPort` Created by Administrator
    `class` | `EthernetPort` Created by Administrator
    `class` | `SerialPort` Created by Administrator
    `class` | `UsbPort` Created by Administrator