bugfix: uint32 -> int32
bugfix: uint32 -> int32

CheyiLin/pbc,yubobarye/pbc,owent-contrib/pbc,xiaoqunSun/pbc,owent-contrib/pbc,cloudwu/pbc,zh423328/pbc,DoooReyn/pbc,zhuoyikang/pbc,cloudwu/pbc,boyuegame/pbc,MonCoder/pbc