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chgrp –R mysql mysql
chgrp: 无效的组:"–R"
这个是什么情况呢?
3 replies • 1970-01-01 08:00:00 +08:00
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–R 里面 - 打成全角了
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楼上好眼力~
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想起了以前有个这样的笔试题, int i = 1, j = 2, k = 3, l = 4, m = 5; printf("%d\n", i + j + k + 1 + m);
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