之前我們用了Jetbrain更現(xiàn)代的IDE進(jìn)行了Hello World骑祟，總感覺少了點什么壁拉，這次我們用最原始的命令行重新來一次hello world
$ gcc -v
Configured with: --prefix=/Library/Developer/CommandLineTools/usr --with-gxx-include-dir=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/4.2.1
Apple clang version 11.0.3 (clang-1103.0.32.29)
Target: x86_64-apple-darwin19.0.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
創(chuàng)建一個源碼文件
$ vim helloc.c
#include<stdio.h>
int main() {
printf("Hello world!\n");
return 0;
}
使用gcc進(jìn)行編譯
$ gcc helloc.c
就會生成可執(zhí)行文件了
$ ls -l
drwxr-xr-x 6 junjiexun staff 192B 4 16 22:49 a.out*
-rw-r--r-- 1 junjiexun staff 83B 4 16 22:56 helloc.c
直接運行就行
$ ./a.out
Hello world!
