求助一波

  "bytes"

    log.Printf("[%2x] data:[%2x]", this.command_buffer, data)

    this.command_buffer.Reset()

    this.command_buffer.Write(left_bytes)

    this.command_buffer.Write(data)

    this.command_buffer.Write(right_bytes)

    log.Printf("[%2x]", this.command_buffer)

    this.command_pos += len(data)

2017/05/15 16:31:34 left_bytes:[aa] right_bytes:[aaaa] data:[d] len:(1)

2017/05/15 16:31:34 [616161616161] data:[64]

2017/05/15 16:31:34 [61616464616161]

2017/05/15 16:31:34 command aaddaaa

这是不是个bug,我加入一个64到buffer里面,结果打印的时候,变成2个了..