结构体对齐问题 #pragma pack(1)

#pragma pack(1)
struct CBR{
    unsigned int ip_addr;
    unsigned short port;
    unsigned short type;
    unsigned short length;
    unsigned int src;
    unsigned int dest;
    int itemsToSend;
    int itemSize;
    char startTimeStr[20];
    char intervalStr[20];
    char endTimeStr[20];
};

   unsigned char CBRChar[] ={0xea,0x02,0xa8,0xc0,0xdc,0xff,0x13,0x00,
                             0x56,0x00,0x01,0x00,0x00,0x00,0x64,0x00,
                             0x00,0x00,0xec,0x13,0x00,0x00,0xe8,0x03,
                             0x00,0x00,0x33,0x30,0x53,0x00,0x00,0x00,
                             0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
                             0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x2e,
                             0x30,0x31,0x00,0x00,0x00,0x00,0x00,0x00,
                             0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
                             0x00,0x00,0x36,0x30,0x53,0x00,0x00,0x00,
                             0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
                             0x00,0x00,0x00,0x00,0x00,0x00};

    struct CBR *cbr =(struct CBR *)CBRChar;