lasso tricks

/run/screen/s-root.[Email protected] ~]# screen-r 67495After entering the 67495 window, execute exit to exit the current window. When all the windows in a session are ended, the session is automatically terminated, and the command line prompts [screen is terminating]. At this point, only one session is viewed:[Email protected] ~]# Screen-lsThere is a screens on:67752.test (Detached)1 Socket in/var/run/screen/s-root.This article is from the "10732668" blog, please be sure to keep this source http

different ways.10. Record your views on the technology to the documentation/blogIn our daily work, we may learn new things, new ways of doing things, practical forms and architectural ideas. You can record these ideas in a document or blog and share them with you. Because the way you're going to solve the problem is probably just another corner of the world. Another developer "Searching for a quest", your share will be nothing less than a long drought."Editor: Chenqingxiang TEL: (010) 68476606"

Recently began to chew PyQt.The utility value of this goods is big, it is worth some effort to tinker, toss.Getting started is a lot of guide books, get started faster. The missing is the high-tech documentation.There are many things on the web that are more than a QT gourd.Want to see the pioneers of the lessons, the search for the community, did not find the forum, only to find a mailing list.Hard to get back a bunch of zip documents, do not want to manually disassemble, write a script to unpa

to 20171148 all elective Java programming courses, all students score randomly generated 60-100 random number Packageltb6w;ImportJava.util.Random; Public classStuscore {Random R=NewRandom (); Private intNum=0; Private intSum=0; Private intstudentid=20171118; PrivateString java= "Java Programming Course:"; PublicStuscore () {num= This. Getrandom (); } Public voidGetscore () { while(sum) { if(num>100| | Num) {num= This.

code It saves all configuration changes, such as CSS ID and class name, button label text, descriptive text, localized language settings Set the object as a global object so that others can directly access and overwrite You should do this at the last step, here is an article, a reference to the value of 5 things before delivering the code.Interacting with the backgroundJavaScript is a front-end language, you need other languages to interact with the background, and return data, usi

List Set the display:inline of the DOCTYPE HTML>HTML>Head>MetaCharSet= "Utf-8">title>Another way to arrange the list horizontallytitle>styletype= "Text/css">ul Li{Display:inline;background:#F93;padding:5px;}}style>Head>Body>ul> Li>Item1Li> Li>Item2Li> Li>Item3Li> Li>Item4Li>ul>Body>HTML>Effect:Wait, why is there a gap between Li???The solution is: write Li as a lineul> Li>Item1Li>Li>Item2Li>Li>Item3Li>Li>Item4Li>ul>Yes, it's written like this (I don't know if it's a bug)This metho

) { + varHandlers = This. Handlers[type]; A for(vari=0,len=handlers.length;i ){ the if(Handlers[i] = =handler) { + Break; - } $ } $Handlers.splice (i,1 ); - } - } the}Extension: (see http://www.zhangxinxu.com/wordpress/?p=2330 for details)DOM Custom events: such as adding a custom event to an element. The basic format is as follows:var $ = function (EL) {return new _$ (EL);};var _$ = function (E

Automate the creation of a virtual directory using ADSI, ASP, and a pair of magic tricks, Part II Tom Moran and Jeff sandquist February 22, 1999 We're back. The second part of this article, which is eagerly awaited, is now here. And I think you will spend the whole evening watching your cat clean yourself. This month, Jeff sandquist and I completed our Dynamic Directory Service interface (Active directory Services interfaces, ADSI) applications. If

Some tricks of the servlet template code Request related Get some basic parameters view source print? 01 Get Submit Address 02 Request.getrequesturi (); 03 Get Submit Content 04 Request.getquerystring (); 05 Get client address (browser) 06 Request.getremoteaddr (); 07 Get client po

Microsoft Access Secrets, tricks, and pitfalls Brian C. Blackman. System Support Engineer, Microsoft Access Basic Summary This article outlines that when you use Microsoft Access, you can increase the execution speed of your application by using Access Basic, reduce the amount of coding, and reduce the number of times you are programming for the Microsoft Windows application interface. The technology of problems encountered in developing applications.

avoid the advent of the grocery store-style site, everything is a brain to their own site heap, it is bound to distract the attention of visitors. Structure: The backbone of the websiteTo do the site is like building blocks, the topic and content mentioned above is that these blocks, is built into the sky, or a pile of scattered heap, it depends on your creativity and imagination. Design layout of the common tricks is: take a piece of white paper, a

) {Display_header (); First =0; } display_row (); }if(Mysql_errno (conn)) {fprintf(stderr,"retrive error:%s\n", Mysql_error (conn)); } mysql_free_result (RES_PTR); }} mysql_close (conn);Exit(exit_success); } Tips for use:A about the MYSQL mysql_res type variable definition and free problem.It would be better to use the following methods, for example.Definition: Mysql_res *res=null;Use: res = Mysql_store_result (m_sock)Release: if (res){mysql_free_result (r

1. Database name/table name/Field name parent case　　Database name/table name/field names using lowercase letters1.1. Database name/table name caseBecause Mysql-noinstall-5.1.73-win32.zip is not the same for database name/table name-case sensitive settings under Windows and Linux, the default letter case is not sensitive and the latter is case sensitive.To avoid problems when the database migrates the operating system, the contract database name/table name parent is lowercase.1.2. The field lette

: Date-s 16:04:00 '```To view hardware time (BIOS): Hwclock commandParameter explanation:-R: View the existing BIOS time, default to-R parameter.-W: Writes the current Linux system time to the BIOS.' sync BIOS clock, force system time to write Cmos:clock-w 'Synchronize with Internet time```Vi/etc/rc.d/rc.local/usr/sbin/ntpdate-u 192.168.0.2 192.168.0.3 192.168.0.4;/sbin/hwclock-w``` FL2440 Burning Burn process Commands//用 J_link 烧录bootstraphspeed 12000loadbin D:\Linux_sh

;table);printf("\ t Type:");if(Is_num (Field_ptr->type)) {printf("Numeric field\n"); }Else{Switch(Field_ptr->type) { CaseField_type_var_string:printf("varchar\n"); Break; CaseField_type_long:printf("LONG"); Break;default:printf("Type is%d, check in msyql_com.h\n", Field_ptr->type); } }printf("\ t Max width%ld\n", field_ptr->length);if(Field_ptr->flags Auto_increment_flag)printf("\ t Auto increments\n");printf("\ n"); }}intMain (intargcChar*argv[]) {connection ("localhost","Root","Shua

]#Explanation: forOPTIONinch{"ServerID","NAME","Idnum"," Time","Mysql_user","mysql_passwd","user_db","Mysql_host","Mysql_port","other_db"} Do sed-r-i'[email protected]' "${option}"'@' "${! OPTION}"'@g'${dirname}/${configfile}# #OPTION变量的内容就是 {"ServerID", "NAME", "Idnum", "Time", "Mysql_user", "mysql_passwd", "user_db", "Mysql_ HOST "," Mysql_port "," other_db "}. These strings are to be consistent with the document Test.json.# #然后使用sed匹配到option在文档的内容,# #然后把 ${! The value of option} is

a number (also such as String judgment)# [[ $num =~ ^[0-9]+$ ]] echo yes || echo no #[[]]比[]更加通用，支持模式匹配=~和字符串比较使用通配符`^ $：从开始到结束是数字才满足条件=~：一个操作符，表示左边是否满足右边（作为一个模式）正则表达式28. Remove line breaks and replace spaces with other characters# cat a.txt |xargs echo -n |sed ‘s/[ ]/|/g‘ #-n 不换行# cat a.txt |tr -d ‘\n‘ #删除换行符29. View 20 to 30 lines of text (100 lines total)方法1：# awk ‘{if(NR > 20 NR 30. Two-column position substitution in text# cat a.txt60.35.1.15 www.baidu.com45.46.26.85 www.si

Code that executes PHP files directly in Linux using the "php" command typically runs PHP files under the Linux command line: XML/-f php file path For example:/opt/modules/php/bin/php-f/opt/data/www/yoururl/index.php each time input PHP installation path is troublesome, in fact we can not enter the Oh! copy/opt/modules/php/bin/php This file to/usr/sbin, PHP will be installed as Linux command under Linux execute the following command XML//opt/ modules/php/bin/php /usr/sbin So you can use th

information by Ctrl+bRenaming shortcut Keys Shift+f6Ctrl+o high-speed rewrite method, ctrl+i high-speed implementation interfaceSmart type hint shortcut ctrl+shift+space can prompt code snippetWhen using your own active completion, you can use the tab in the Pop-up box to selectAlt+insert can create some methods at high speedDirect Input keyword to searchCtrl+alt+t to select the template codeExtracting refactoring code from CTRL+ALT+VSelf-actively gaze ctrl+/ctrl+shift+/Ctrl+d to copy a rowUsin

http://www.lydsy.com/JudgeOnline/problem.php?id=1016I can't imagine Qaq.The first thing to think of is: the topic has said, with the same weight value of the side will not exceed 10.Second: Always think of how the combination counts .... So the worst of the violence is not.So this is a violent mess, Orz.By adding edges in turn, the number of scenarios for each edge is the scheme.Note that the collection cannot be compressed, otherwise it will be waqaq because the path compression of the check se