基本上已经无用的防破解方法

//First Method
#import 
#import 
#import 

/* The encryption info struct and constants are missing from the iPhoneSimulator SDK, but not from the iPhoneOS or
 * Mac OS X SDKs. Since one doesn't ever ship a Simulator binary, we'll just provide the definitions here. */
#if TARGET_IPHONE_SIMULATOR && !defined(LC_ENCRYPTION_INFO)
#define LC_ENCRYPTION_INFO 0x21
struct encryption_info_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t cryptoff;
    uint32_t cryptsize;
    uint32_t cryptid;
};
#endif

int main (int argc, char *argv[]);

static BOOL is_encrypted () {
    const struct mach_header *header;
    Dl_info dlinfo;

    /* Fetch the dlinfo for main() */
    if (dladdr(main, &dlinfo) == 0 || dlinfo.dli_fbase == NULL) {
        NSLog