in script,i use HttpWebRequest to get service from network.but it comes a mysterious problem. the source code: string url = "http://apis.baidu.com/apistore/vop/baiduvopjson"; HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); print…
# Copyright 2001-2016 by Vinay Sajip. All Rights Reserved. # # Permission to use, copy, modify, and distribute this software and its # documentation for any purpose and without fee is hereby granted, # provided that the above copyright notice appear…
logger 提供了应用程序可以直接使用的接口handler将(logger创建的)日志记录发送到合适的目的输出filter提供了细度设备来决定输出哪条日志记录formatter决定日志记录的最终输出格式 logging模块介绍 logger 提供了应用程序可以直接使用的接口handler将(logger创建的)日志记录发送到合适的目的输出filter提供了细度设备来决定输出哪条日志记录formatter决定日志记录的最终输出格式 Python的logging模块提供了通用的日志系统,熟练使用l…
logger 提供了应用程序可以直接使用的接口handler将(logger创建的)日志记录发送到合适的目的输出filter提供了细度设备来决定输出哪条日志记录formatter决定日志记录的最终输出格式 logging模块介绍 Python的logging模块提供了通用的日志系统,熟练使用logging模块可以方便开发者开发第三方模块或者是自己的Python应用.同样这个模块提供不同的日志级别,并可以采用不同的方式记录日志,比如文件,HTTP.GET/POST,SMTP,Socket等,甚至可…
# Copyright 2001-2017 by Vinay Sajip. All Rights Reserved.## Permission to use, copy, modify, and distribute this software and its# documentation for any purpose and without fee is hereby granted,# provided that the above copyright notice appear in a…
转自:http://webrtc-security.github.io/ A Study of WebRTC Security Abstract Web Real-Time Communication (abbreviated as WebRTC) is a recent trend in web application technology, which promises the ability to enable realtime communication in the browser w…
http://georgeinfo.blog.163.com/blog/static/16368334120101019104044650/ ———————————————————————————————————————————————————————————— These days when you find me working in Java, you’ll find me working in NetBeans. If I wanted to spend my time manually…
sudo docker images REPOSITORY                        TAG                 IMAGE ID            CREATED             SIZE docker.io/golang                  1.10                d0e7a411e3da        5 days ago          794 MB docker.io/alpine               …
1. Detecting Performance Issues 2. Scripting Strategies 3. The Benefits of Batching 4. Kickstart Your Art 5. Faster Physics 6. Dynamic Graphics 7. Masterful Memory Management 8. Tactical Tips and Tricks 1. Detecting Performance Issues  The Unity Prof…
When we cross compiling coreutils, there is an problem of generating man pages, because the source script use the binaries generated by make process to produce man pages, but the cross compiled binaries cannot run on build machine. In order to resolv…
比较简单的方法: 1.引用DBXJSON,  DBXJSONReflect 假设有一个类: type TKid = class FirstName: String; LastName: String; Age: Integer; BornDate: TDateTime; class function CreateAndInitialize: TKid; public function SayHello(sName:string):String; end; { TKid } class funct…
/*By Jiangong SUN*/ After encountering some problems in deploying databases to local server, here are some tips which could be helpful in the database deployment exercises. When you deploy your databases. You can monitor the progress in "Data Tools O…
http://scottsievert.github.io/blog/2015/01/31/the-mysterious-eigenvalue/ The Fibonacci problem is a well known mathematical problem that models population growth and was conceived in the 1200s. Leonardo of Pisa aka Fibonacci decided to use a recursiv…
H. Mysterious Photos Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100187/problem/H Description Everyone probably heard the rumours about the constellation of Bermuda Triangle: any person who looks to this constellation of th…
http://lightoj.com/volume_showproblem.php?problem=1220 Mysterious Bacteria Time Limit:500MS     Memory Limit:32768KB     64bit IO Format:%lld & %llu Submit Status Practice LightOJ 1220 Description Dr. Mob has just discovered a Deathly Bacteria. He na…
这是 meelo 原创的 IEEEXtreme极限编程大赛题解 Xtreme 10.0 - Mysterious Maze 题目来源 第10届IEEE极限编程大赛 https://www.hackerrank.com/contests/ieeextreme-challenges/challenges/mysterious-maze There is a valuable treasure that is hidden below a complex maze. The maze is made…
D. Mysterious Present 题目连接: http://www.codeforces.com/contest/4/problem/D Description Peter decided to wish happy birthday to his friend from Australia and send him a card. To make his present more mysterious, he decided to make a chain. Chain here i…
Mysterious For Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 694    Accepted Submission(s): 264 Problem Description MatRush is an ACMer from ZJUT, and he always love to create some special pro…
求有限集传递闭包的 Floyd Warshall 算法(矩阵实现) 其实就三重循环.zzuoj 1199 题 链接 http://acm.zzu.edu.cn:8000/problem.php?id=1199 Problem B: 大小关系 Time Limit: 2 Sec  Memory Limit: 128 MBSubmit: 148  Solved: 31[Submit][Status][Web Board] Description 当我们知道一组大小关系之后,可判断所有关系是否都能成立…
Gson解析JSON字符串时出现了下面的错误: No-args constructor for class X does not exist. Register an InstanceCreator with Gson for this type to fix this problem. 解决的办法是把对应的Class改成静态类.…
C - NP-Hard Problem Crawling in process... Crawling failed Time Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 688C uDebug Description   Input   Output   Sample Input   Sample Output   Hint…
I joined the NodeJS online Course three weeks ago, but now I'm late about 2 weeks. I pay the codeschool yearly subscribed, but I have lost the track long time. I get more weight than expected. I like more and more my MacBook Pro I maybe go to the UST…
    Programming Contest Problem Types Hal Burch conducted an analysis over spring break of 1999 and made an amazing discovery: there are only 16 types of programming contest problems! Furthermore, the top several comprise almost 80% of the problems s…
题意: 给你一个数n,表示有n辆火车,编号从1到n,入站,问你有多少种出站的可能.    (题于文末) 知识点: ps:百度百科的卡特兰数讲的不错,注意看其参考的博客. 卡特兰数(Catalan):前几项为 : 1, 1, 2, 5, 14, 42, 132, 429, 1430, 4862, 16796, 58786, 208012, 742900, 2674440, 9694845, 35357670- 令h(0)=1,h(1)=1,catalan数满足递推式:      h(n)= h(0…
2301: [HAOI2011]Problem b Time Limit: 50 Sec  Memory Limit: 256 MBSubmit: 4032  Solved: 1817[Submit][Status][Discuss] Description 对于给出的n个询问,每次求有多少个数对(x,y),满足a≤x≤b,c≤y≤d,且gcd(x,y) = k,gcd(x,y)函数为x和y的最大公约数. Input 第一行一个整数n,接下来n行每行五个整数,分别表示a.b.c.d.k Outp…
You are given two jugs with capacities x and y litres. There is an infinite amount of water supply available. You need to determine whether it is possible to measure exactly z litres using these two jugs. If z liters of water is measurable, you must…
A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A), write a pr…
$s = curl_init(); curl_setopt($s, CURLOPT_POST, true); curl_setopt($s, CURLOPT_POSTFIELDS, $queryStr); curl_setopt($s, CURLOPT_URL, $url); curl_setopt($s, CURLOPT_TIMEOUT, 1000); curl_setopt($s, CURLOPT_RETURNTRANSFER, 1); $body = curl_exec($s); if($…
3489: A simple rmq problem Time Limit: 40 Sec  Memory Limit: 600 MBSubmit: 1594  Solved: 520[Submit][Status][Discuss] Description 因为是OJ上的题,就简单点好了.给出一个长度为n的序列,给出M个询问:在[l,r]之间找到一个在这个区间里只出现过一次的数,并且要求找的这个数尽可能大.如果找不到这样的数,则直接输出0.我会采取一些措施强制在线. Input 第一行为两个整…
http://codeforces.com/problemset/problem/442/B (题目链接) 题意 n个人,每个人有p[i]的概率出一道题.问如何选择其中s个人使得这些人正好只出1道题的概率最大. Solution 很显然的概率dp,过了样例即可AC..话说我为什么要刷B题→_→ 代码 // codeforces442B #include<algorithm> #include<iostream> #include<cstdlib> #include<…