06 2021 档案
摘要：a b c d e f g h i j k l m n o p q r s t u v w x y z 默认使用所有, 且于最后 -n --max-args=MAX-ARGS use at most MAX-ARGS arguments at a time 使用 -n1 使 xargs 每次传入一个
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摘要：set +o history 关闭 set -o history 打开 export HISTCONTROL=ignorespace or export HISTCONTROL=ignoreboth [space] command # 此command不会被记录 export HISTSIZE=0
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摘要：官网: /source/index.html (openssl.org) git: GitHub - openssl/openssl: TLS/SSL and crypto library 下载源码包 , 安装依赖 wget https://www.openssl.org/source/openss
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摘要：public class Queen { protected int num = 8; // the number of queens // chessboard索引表示行,即第几个queen,chessboard[i]=value,表示第i+1个queen,位于value+1列 int[] che
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摘要：Labyrinth public class Labyrinth { public static void main(String[] args){ Map map=new Map(); map.init(); map.show(); Mouse mouse=new Mouse(); mouse.s
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摘要：杨辉三角 import java.util.Scanner; public class B { public static void main(String[] args) { int[][] array=new int[10][]; for(int i=0;i<array.length;++i){
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摘要：import java.util.Scanner; public class B { public static void main(String[] args) { String[] names={"aa","bb","cc","dd"}; System.out.println("name: ")
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摘要：（Array.length-1）/ 2 and Array.length/2 取中值 index Array.length is even * * * * * * ^ (Array.length-1)/2 * * * * * * ^ Array.length/2 当Array.length is e
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摘要：Universal: Disable Bell In the Terminal sed -i '/bell-style none/c \set bell-style none' /etc/inputrc Ubuntu: Setup Fountain sed -i 's@http://.*.ubunt
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