protected override int GetBodyLengthFromHeader(byte[] header, int offset, int length)
{
//length为头部(包含两字节的length)长度
//获取高位
byte high = header[offset + length - 1];
//获取低位
byte low = header[offset + length - 2];
return(MQTools.GetBodyLengthFromHeader(high, low));
}
