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How to control the while loop through another event and use keystrokes to control the while loop when necessary1, set a loop flag. Loop in the main process and check the loop flag in each loop to decide whether to continue, change the flag after detecting the key input in the thread2, key detection in the main process, the thread for the loop operation, the main process detects the

The button triggers a trigger message to be sent to MessageQueue with the following message: {when=-20s330ms what=11 obj=keyevent {action=action_down, Keycode=keycode_ 1, scancode=0, metastate=0, flags=0x6, repeatcount=0, eventtime=3939450, downtime=3939450, DeviceId=-1, source=0x0} Target=android.view.viewrootimpl$viewroothandler} This message is processed in Viewrootimpl$viewroothandler, and the corres

Mysqldump Lead Library error Duplicate entry "for key 1This database backup is backed up with a backup program back in the background, more than 400 m, larger, so no phpmyadmin import, enter cmd, mysql-h localhost-u root-p database name This is what the problem caused Ah, on Baidu, on GG, also can not find a good solution, had to mysql-h localhost-u root-p database name Search the Internet to this, first copy down, slowly study: Error 1062 (23000)

(NewView.onclicklistener () {@Override Public voidOnClick(View v) {SimpleDateFormat SDF =NewSimpleDateFormat ("yyyy mm month DD Day HH:MM:SS"); Editor. putstring (Key_time, Sdf.format (NewDate ())); Editor. Putint (Key_random,(int) (Math.Random() * -)); Editor. Commit (); } }); }}Setting's preferencepreference translation is a preference, set the user's preferences. Instead of setting the user interface with the View o

Label:SQL statement: ALTER TABLE T3 ADD PRIMARY KEY (ID);Execution Error:MSG 1505, Level 16, State 1, line 1thBecause the object name was found ' dbo. T3 ' and index name ' pk__t3__3214ec270466e04c ' have duplicate keys, so the CREATE UNIQUE index statement terminates. The duplicate key value is (1).Msg 1750, Level 16,

I changed the int type of id to bigint. In fact, it may be better to change it back. An error may occur during database backup. This problem occurs during the testing of the developed website background system:Invalid Query: Duplicate entry '000000' for key 1SQL is: INSERT INTO 'kq _ new' ('title', 'autor', 'type', 'content', 'isdel', 'adate', 'range ', 'lang ') values ('donation activities', 'yuanying', '3', ", '0', NOW (), '2', 'cn ')Because it was

Install mysql warning: mysql-community-server-5.7.19-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY, headerv3dsanokey Red HatWarning: MySQL-server-5.5.46-1.linux2.6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY cause: this is because yum has installed the old version of GPG k

There are so many things to do:1. Tool software upgrade/revision interface, plus Unicode, plus multi-lingual translation (earn small, seek acquisitions)2. Modify the online version of the Delphi software, can correctly display Chinese (unique self-employed, risky)3. Build intranet Account management (subordinate to Project 2, also let others do)4. QT uncompressed backup upload, UTF8/GBK, the rest of the recovery module to understand, plus FTP/FTPS/TFT

============================================================================= Shortcut key ActionsCTRL + C Cancel commandCTRL + Z Pause commandCTRL + a cursor to the beginningCtrl+e cursor to end of lineCtrl+u Delete all characters before the cursorCtrl+k Delete all characters after cursorCtrl+l Clear ScreenCtrl+d Sign Out = = ExitCtrl+s lock Command terminal, press any key will not reactCTRL+Q unlock Comm

Difficulties and key points encountered during zoolerac installation (1) When using virtual machines to build the RAC environment on a physical machine, many "pitfalls" and key points are encountered. Physical Machine: Intel (R) Core (TM) i7-5600U CPU @ 2.60 GHz, 8 GB memory Virtual Machine Software: VMware ServerVersion 2.0.2 Database software: Oracle 11.2.0.1,

Key and difficulty 1 in Android development: RelativeLayout (relative layout,Preface La la ~ The blogger has launched a new series ~ The previous Android development series mainly focused on the experiment completion process and often integrated a lot of knowledge to write, so it is inevitable that there will be a mixture of knowledge points, giving people a sense of confusion. Therefore, the bloggers launc

)),[F_parentidstr] [nvarchar] (300) Collate chinese_prc_ci_as null constraint [df_f_classtest_f_parentidstr] default (''),[F_parentnamestr] [nvarchar] (300) Collate chinese_prc_ci_as null constraint [df_f_classtest_f_parentnamestr] default (''),[F_readme] [nvarchar] (250) Collate chinese_prc_ci_as null constraint [df_f_classtest_f_readme] default (''),[F_addtime] [datetime] Null constraint [df_f_class_f_addtime] default (getdate ()),[F_type] [nvarchar] (50) Collate chinese_prc_ci_as null,[F_max

Microsoft Combat Training Camp Shanghai Jiaotong University (A) experimental class, (X) Key courses Internal curriculum Information link: http://pan.baidu.com/s/1jGsTjq2 Password: 0wmfMicrosoft Combat Training Camp (X) key Class (1) Lesson: ASP. NET Web Service development Battle of SOA essentialsMicrosoft Combat Training Camp Shanghai Jiaotong University (A) exp

Pocket notes (1): C # key points of programming,Preface The Pocket notes series focus on recording small technical points in daily life, although the relationship between points may not be very large. However, it is small enough to be familiar with and applied to the daily development cycle to produce practical benefits. Remember is the first step, not the ultimate goal. The ultimate goal is to develop a hi

Key points and difficulties of TCP protocol (1) 1. network protocol design ISO puts forward the OSI layered network model, which is theoretical. TCP/IP finally implements a layered protocol model, each layer corresponds to a set of network protocols to complete a set of specific functions. The network protocols under this group are reused and reused. This is th

New Features of iOS7 ViewController Transition (1) previous summary and key API Introduction@ Before iOS7, there were four main View Controller switches:1. Push/Pop, NavigationViewController2. Present and dismis Modal3. UITabBarController4. addChildViewController (generally used for custom container subclass inherited from UIViewController)IOS5, call-(void) invok

Softswitch will gradually become a key technology (1) With the rapid development of science and technology in recent years, in order to meet the increasing needs of people and provide users with flexible, diverse businesses and personalized services, Softswitch technology is the key technology to achieve this function. As a product of the development of network

New Features of iOS7 ViewController Transition (1) previous summary and key API introduction, ios7viewcontroller@ Before iOS7, there were four main View Controller switches:1. Push/Pop, NavigationViewController2. Present and dismis Modal3. UITabBarController4. addChildViewController (generally used for custom container subclass inherited from UIViewController)IOS

Recently there are some data, such as:a1,asdff,dddd,23zz,ss,ff,hh,kk,56pppp,90wwww,qqq,eee,ttt,yyy,44Such data, need to be the previous N-1 fields as key, the last field to do value, and according to the value of the sort, pondering for a long time, finally initially implemented, so in this note and share:awk ' begin{fs= ', "; ofs= " "}{Awk Plus sort implements a key