引用静态库bug ：Undefined symbols for architecture armv7: "operator delete(void*)", referenced from:

Undefined symbols for architecture armv7:
"operator delete(void*)", referenced from:
  AES::~AES() in libusc.a(AES.o)
"___gxx_personality_sj0", referenced from:
  _decyptToken in libusc.a(tokenWrap.o)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

　　引用一个静态库，出现上面的bug，找了好久。解决办法：把项目中的XXXAppDelegate.m修改成.mm就行了。