考虑以下结构声明:typedefstruct{UINT8HdrLength:4;UINT8Version:4;UINT8TOS;UINT16Length;UINT16Id;UINT16FragOff0;UINT8TTL;UINT8Protocol;UINT16Checksum;UINT32SrcAddr;UINT32DstAddr;}WINDIVERT_IPHDR,*PWINDIVERT_IPHDR;最后声明的“*PWINDIVERT_IPHDR”，我以前从未见过。它似乎只是WINDIVERT_IPHDR结构的指针类型声明。我的假设正确吗？如果是，这段代码会不会:externBOOLW