C++ 结构体字节占比分配struct Param{unsigned long A : 8unsigned long B : 24Param(){memset(this, 0,
C++ 结构体字节占比分配
struct Param{unsigned long A : 8;unsigned long B : 24;Param(){memset(this, 0, sizeof(Param));}};Param param;param.A = 0xffffffff;param.B = 0xffffffff;//A为0x000000ff//B为0x00ffffff