When ambition ends, happiness begins. 野心消亡之日,正是快乐破茧之时. If I don't have the wish to be a useful man, I wouldn't be so depressed. I find I am not happy at all, no matter what I have done. I am always fearful because I know I am quite incompetent to the…

The secret of high-impact business is early preparation. 高效商务,赢在未雨绸缪. Early and best preparation is the secret of all successes. The most difficult thing is the decision to act, the rest if merely tenacity. 最难的是下定决心行动,其余的只需坚持不懈. We are often told tha…

Everything is going on, but don't give up trying. 万事随缘,但不要放弃努力. Every time when I want to give up, you will say some warm words to uplift me. Is it useful or is it useless. I don't know. Now that my destiny is in your control, I had better to give up…

Care and diligence bring luck. 谨慎和勤奋带来好运气. Just as we have said before, diligence is the mother of good luck. We are not born with golden spoon in the mouth. So, it is not strange that we may be left behind at the beginning stage of our life. Then, w…

本周PSP: C(类别) C(内容) S(开始时间) ST(结束时间) I(中断时间) T(实际时间) 活动 本周站立会议 -- -- -- 340 撰写博客 构建之法有感 22:10 23:44 30 64 饼图: 本周进度条: 随笔累计字数 386+4107+354+291+1067+1132=7337 代码累计行数 592+599=1191 知识点 理解软件工程的概念.配合团队日常工作 随笔字数和代码行数折线图:…

1.indexof() indexOf()的用法:返回字符中indexof(string)中字串string在父串中首次出现的位置,从0开始,没有返回-1:方便判断和截取字符串!indexOf()定义和用法indexOf() 方法可返回某个指定的字符串值在字符串中首次出现的位置.语法stringObject.indexOf(searchvalue,fromindex)参数 描述searchvalue 必需.规定需检索的字符串值.fromindex 可选的整数参数.规定在字符串中开始检索的位置.它…

Those are my principles, and if you don't like them... well, I have others. 那是我的原则,要是你不喜欢......那我还有其他原则. From Groucho Marx. Please hold on to your principles, if you think they are right. But sometimes, you can be more flexible so that you can stick…

It takes a strong man to save himself, and a great man to save another. 强者自救,圣者渡人. When you are not strong enough to save others, just concentrate on self-improvements and self-promotion. For many of us, the best thing we can do to save others is to…

Confine yourself to the present. 着眼当下. The morning wind spreads its fresh smell, we should get up and take that in, that wind lets us live, breathe, before it's gone. Sometimes we got stuck in the past, and sometimes we only live for the future, but…

Our life is what our thoughts make it. 我们的思想成就了我们的生活. The mind is everything. What you think, you become. And whatever you can do, or whatever you dream you can, begin it, because boldness has genius, power and magic in it. But sometimes, you don't a…

Receive without conceit, release without struggle. 接受时,不狂妄:放手时,不犹豫. How to understand this quote? Doesn't it mean that when we are given some gifts from others, we shouldn't take them for granted, we shouldn't ask for more, when we plan to let someth…

Love is blind, hard to find, difficult to get, and impossible to forget. 爱,很盲目,很难找,很难得,很难忘. It is almost impossible to find love, sincere love if we don't know ourselves, because we may not know who is our Mr. Right among those people me meet in our…

Don't cry for what is lost. Smile for what still remains. 别为失去的哭泣,为还留在你身边的一切微笑吧. I have been told that if crying for missing the sun, we may miss the chance to see the beautiful stars as well. Life would never give us the second time to get something…

re模块 什么是正则? 正则就是用一些具有特殊含义的符号组合到一起(正则表达式)来描述字符或者字符串的方法.或者说:正则就是用来描述一类事物的规则.内嵌在Python中,通过re模块实现.正则表达式模式被编译成一系列的字节码,然后由用c编写的匹配引擎执行. 常用正则表达式符号 '.' 默认匹配除\n之外的任意一个字符,若指定flag DOTALL,则匹配任意字符,包括换行 '^' 匹配字符开头,若指定flags MULTILINE,这种也可以匹配上(r"^a","\nabc\…

When you fall in love, friends, let yourself fall. 当你坠入爱河,我的朋友,你就放手去爱吧. To love someone is like moving into a new house. At first we will fall in love in everything new, we wonder every morning that this is our own, as if they are afraid that someone…

When he can't, he tries a new way to share a new pair. 当他做不到时,他尝试一种新的方式:分享. To share, your failing experience, your problems, maybe someone can give you help or hints to resolve the problems. Good manners and soft words have brought many a difficult…

对于任何一个学计算机的人来说,软件都不陌生,甚至于一个普通的朝九晚五的上班族,他的每日生活工作也都与软件有着密不可分的关系.然而,程序又是如何从一行行指尖留下的代码,机器存储的数据变成快捷高效的软件的呢?这中间我们所经历的一系列过程的总和,我们称之为软件工程. 从本科开始学习计算机,我们就不可避免的接触了形形色色的软件,了解大量的软件开发工具,我那个时候甚至没有软件工程这个概念,只认为,我们所用的软件就是开发工具编译.执行.包装.发布的产物.后来,开设了软件工程这门课程,才开始系统地接受软件工程…

Art lies in concealing art. 隐而不露即艺术. Sometimes, concealing is much more seductive than totally naked. So, you must learn how to express your meaning in an indirect way and you must learn to hide some of your feeling. If you let others know all what y…

2017-2018-2 20179212<网络攻防实践>第8周作业 视频学习 Kali权限维持之后门 权限维持包含Tunnel工具集.Web后门.系统后门三个子类.其中系统后门与web后门统称后门,都是为渗透测试后,为方便再次进入系统而留下的恶意程序. Weevely是一款使用python编写的webshell工具,可以算作是linux下的一款菜刀替代工具(限于php). 1.生成后门 2.上传后门,使用weevely连接. WeBaCoo(Web Backdoor Cookie)script…

题意: T N M N个数 M个操作 一个数组A, 有3个操作 1 l r x,a[l]-a[r]都+x 2 l r,a[i]=sqrt(a[i]),l<=i<=r 3 l r,求和,a[i], l<=i<=r 操作3的时候输出 n,m(1<=n,m<=100000). 1<=A[i],x<=100000. 思路: 前言(读者可略过,看了请小喷qaq,欢迎指出错误): 我突然开始困惑复杂度的问题: 如果区间内所有的数都不相等,那么每次sqrt一下的时间复杂度…

a-容斥原理(带限制的不定方程) #include<bits/stdc++.h> using namespace std; #define mod 998244353 #define ll long long #define maxn 500005 ll n,m,k; ll inv[maxn],f[maxn],invf[maxn]; void init(){ inv[]=inv[]=; ;i<maxn;i++) inv[i]=(mod-mod/i)*inv[mod%i]%mod; f[]…

内容概述 本文内容来自开发文档"Traning > Displaying Bitmaps Efficiently",包括大尺寸Bitmap的高效加载,图片的异步加载和数据缓存. Bitmap的处理和加载非常重要,这关系到app的流畅运行和内存占用,如果方法不当,很容易导致界面卡顿和OOM.其中的原因大致有: android系统对进程的内存分配限制,移动设备的配置较低. Bitmap会消耗很大内存.比如相机拍下的 2592x1936 像素的照片,以ARGB_8888 格式一次加载到…

一.Servlet简介 Servlet是sun公司提供的一门用于开发动态web资源的技术. Sun公司在其API中提供了一个servlet接口,用户若想用发一个动态web资源(即开发一个Java程序向浏览器输出数据),需要完成以下2个步骤: 1.编写一个Java类,实现servlet接口. 2.把开发好的Java类部署到web服务器中. 按照一种约定俗成的称呼习惯,通常我们也把实现了servlet接口的java程序,称之为Servlet 二.Servlet的运行过程 Servlet程序是由WEB…

[it-ebooks]电子书列表   [2014]: Learning Objective-C by Developing iPhone Games || Leverage Xcode and Objective-C to develop iPhone games http://it-ebooks.info/book/3544/Learning Web App Development || Build Quickly with Proven JavaScript Techniques http:…

Mysql日期函数,时间函数使用的总结,以及时间加减运算(转) select timediff('23:40:00', ' 18:30:00'); -- 两时间相减SELECT substring( timediff('23:40:00', ' 18:30:00'),1,5) ----“05:10”相减返回小时:分钟 select datediff('2008-08-08', '2008-08-01'); -- 7 -----两日期相减select TO_DAYS('2008-09-08')-T…

A frog is crossing a river. The river is divided into x units and at each unit there may or may not exist a stone. The frog can jump on a stone, but it must not jump into the water. Given a list of stones' positions (in units) in sorted ascending ord…

#!/usr/bin/python # 8th November, 2009 # update manager failed, giving me the error: # 'files list file for package 'xxx' is missing final newline' for every package. # some Googling revealed that this problem was due to corrupt files(s) in /var/lib/…

+BIT祝威+悄悄在此留下版了个权的信说: CSharpGL(0)一个易学易用的C#版OpenGL CSharpGL是我受到SharpGL的启发,在整理了SharpGL,GLM,SharpFont等开源库的基础上,做的一个新的C#版OpenGL库,希望它能做到易学易用,简化OpenGL开发,减少低级错误,帮助初学者更快地由入门到精通. CSharpGL全部源代码.示例.文档都可以在(https://github.com/bitzhuwei/CSharpGL)下载. 下面这段话引自(http://…

我学OpenGL的3D编程也有1.2个年头了,走了很多弯路,也算有点收获.现在整理出一些好用的资料如下. NeHe OpenGL教程中文版 地址(http://www.yakergong.net/nehe/) 评价:耐心耐心再耐心地从第一篇开始照着敲代码,尝试,从而入门. 2016-11-15 NEHE网站打不开了. SharpGL 开源地址(https://github.com/dwmkerr/sharpgl) 评价:用C#对OpenGL进行封装得到的类库.除了最基本的C#版的OpenGL函数…

八. 构建LFS系统 1. 准备虚拟内核文件系统 内核会挂载几个文件系统用于自己和用户空间程序交换信息.这些文件系统是虚拟的,并不占用实际磁盘空间, 它们的内容会放在内存里. mkdir -pv $LFS/{dev,proc,sys,run} mknod -m 600 $LFS/dev/console c 5 1 mknod -m 666 $LFS/dev/null c 1 3 mount -v --bind /dev $LFS/dev mount -vt devpts devpts $LFS/…