#define LC_DYLD_INFO_ONLY (0x22|LC_REQ_DYLD) /* compressed dyld information only */
/*
* The dyld_info_command contains the file offsets and sizes of
* the new compressed form of the information dyld needs to
* load the image. This information is used by dyld on Mac OS X
* 10.6 and later. All information pointed to by this command
* is encoded using byte streams, so no endian swapping is needed
* to interpret it.
*/
， 我查看之后发现dyld在加载的时候，会区分是compressed类型（当有LC_DYLD_INFO(_ONLY)的时候， 会被认为是这个类型）和tranditional类型的， 其实主要不明白这两者的区别是什么。
