m 是将字符串作为多行处理,s是将字符串作为单行处理,如果是s在字符串中出现的\n就相当于普通字符. 6.6. Matching Within Multiple Lines6.6.1. ProblemYou want to use regular expressions on a string containing more than one logical line, but the special characters . (any character but newline), ^ (st…
package Pack1; import java.awt.*; import java.applet.*; class ca { static int n = 20; final int nn; // 声明nn,但没有赋初值 final int k = 40;// 声明k并赋初值40 ca() { nn = ++n; }// 在构造方法中给nn赋值 } public class c4_1 extends Applet { public void paint(Graphics g) { ca…
这作为一个备份,方便查询,毕竟nginx的强大,必然有其复杂性! Location modifier Nginx allows you to define location blocks by specifying a pattern that will be matched against the requested document URI. server { server_name website.com; location /admin/ { # The configuration yo…
高级用法: 多行匹配: grok正则和普通正则一样, 默认是不支持匹配回车换行的. perl的/m选项 The /m modifier allows ^ and $ to match immediately before and after an embedded newline, respectively. /^=head[1-7]/m would match that pattern not just at the beginning of the record, but anywhere…