# [GCC] ### * gcc 預設編譯後連結(ex : gcc hello.c)->可直接./a.out ### * 也可以只編譯(gcc -c hello.c)->會產生一個.o檔案(object) ### * 有了.o檔可以連結產生可執行檔(gcc -o hello.o) ### * 編譯與連結分開原因:若只有修改b.c內容,就只要gcc -c b.c就好,然後再把其他的link在一起
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