seveniu

:%s/r//g                    删除DOS方式的回车^M 
:%s= *$==                   删除行尾空白 

:%s/^(.*)n1/1$/               删除重复行 

:%s/^.{-}pdf/new.pdf/         只是删除第一个pdf 

:%s/<!--_.{-}-->//           又是删除多行注释（咦？为什么要说「又」呢？） 

:g/s*^$/d                    删除所有空行 ：这个好用有没有人用过还有其他的方法吗？

seveniu

Scrot是一个命令行下使用的截图工具，支持全屏、窗口、选取、多设备、缩略图、延时，甚至可以截图完毕之后指定某程序打开截好的图片。

在CentOS上的安装办法：

#yum install giblib giblib-devel

#wget http://linuxbrit.co.uk/downloads/scrot-0.8.tar.gz

# tar xvzf scrot-0.8.tar.gz
# cd scrot-0.8

seveniu

// ==Tempermonkey Script==

// ==UserScript==
// @name       My Fancy New Userscript
// @namespace  http://use.i.E.your.homepage/
// @version    0.1
// @description  enter something useful
// @match      http://search.maven.org/*
// @require http://code.jquery.com/jquery-1.8.2.js
// @copyright  2012+, You

seveniu

package com.seveniu;

import java.util.ArrayList;
import java.util.List;

public class Permutation {
    private int[] array; //传入数组
    private int num;  //从数组中选出n个数
    private int[] result = new int[num];  //将选出的n个数存入数组
    private int count = 0;

seveniu

package com.kaishengit.Util;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

/**
 * Created with IntelliJ IDEA.
 * User: niu

seveniu

package com.kaishengit.aopPivilegesManager;

import com.kaishengit.Util.ListUtil;
import com.kaishengit.dao.GroupDao;
import com.kaishengit.exception.ServiceException;
import com.kaishengit.pojo.Group;
import com.kaishengit.pojo.User;
import org.aspectj.lang.annotation.*;

import javax.inject.Inject;

seveniu

带 http 的，url --->  (http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?

seveniu

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.alibaba.fastjson.JSON;
import org.msgpack.MessagePack;
import org.msgpack.annotation.Message;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

seveniu

function getElementsByXpath(xpath,document) {
    var nodes = [];
    var iterator = document.evaluate(xpath, document, null, XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null );

    try {
        var thisNode = iterator.iterateNext();

        while (thisNode) {
            nodes.push(thisNode);
            thisNode = iterator.iterateNext();

seveniu

local http=require("http")
local httpRequest = {}

function httpRequest:new()
    local obj = {}
    self.__index = self 
    return setmetatable(obj,self)
end

function httpRequest:getInstance()