增加收包时的checksum检测
增加收包时的checksum检测

hermixy/qtun,hermixy/qtun,jack230230/qtun,hermixy/qtun,jack230230/qtun,hermixy/qtun,jack230230/qtun,jack230230/qtun,hermixy/qtun,hermixy/qtun,jack230230/qtun,jack230230/qtun,jack230230/qtun,hermixy/qtun