for (int i 0; i < 20; i){for (int j 0; j < 33; j){for (int k 0; k < 300; k){ //i * 5 j * 3 k/3 100 这里两边都*3if (i j k 100 && i * 15 j * 9 k 300){Console.WriteLine("公鸡{0},母鸡{1},小鸡{2}", i, j, k);}}}} 优化…
一.练习
1.定义一个对所有用户都生效的命令别名
-bash: la: command not found
[rootgrub6 ~]# vim /etc/bashrc
添加 alias lals -a
[rootgrub6 ~]# source /etc/bashrc
[rootgrub6 ~]# la
. .bash_history .bashrc .gconf install.log .p…