Swift Runtime Jun 16, 2014 • Tags: swift Swift is written in C++ 、Objective-C、Swift、 Assembly. TO BE CONTINUED libdyld.dylib`start main(argc, argv) { once() { C_ARGC = argc } once() { C_ARGV = argv } top_level_code() } All code in swift file goes to top_level_code。 Please enable JavaScript to view the comments powered by Disqus.