c4 - C in four functions https://github.com/rswier/c4 An exercise in minimalism. Try the following: gcc -o c4 c4.c ./c4 hello.c ./c4 -s hello.c ./c4 c4.c hello.c ./c4 c4.c c4.c hello.c 我在看这个代码，加了注释，很好，我喜欢这个代码