, will automatically find the first"A word beginning with B, when entered into the/bo, will automatically find the word that begins with the first Bo, depending on"The second analogy, when searching, uses this setting to quickly find the answer when you find a word to match"When you don't forget to enterSet Incsearch"After modifying a file, the backup file name is the original filename plus the" ~ "suffix.If has ("VMS")Set NobackupElseSet backupendifIf you remove the comment, a complete. VIMRC c
the first byte is 10000000):802.5 and 802.6 adopt the standard, this notation writes the highest bit on the leftmost, then the i/g bit is 1.Standards adopted in 802.3 and 802.4. This notation writes the high bits of each byte to the far right, with a i/g bit of 0Considering that not all vendors are willing to purchase the agency's unique identifier, the IEEE specifies that the lowest 2nd bit of the first byte of the Address field is the G/L bit (global/local), that the address is globally manag
-upgrade
Upgrade your system to a new release
Aptitude Install Pkgname
Install package
Aptitude Remove Pkgname
Delete Package
Aptitude Purge Pkgname
To delete a package and its configuration files
Aptitude search String
Search Packages
Aptitude Show Pkgname
Display Package Details
Aptitude Clean
To delete a downloaded package file
Aptitude AutoClean
Del
code to understand it, if present, the same character is recorded at the end of the subscript, if it does not exist, the next string to match.1 classSolution:2 defLongestcommonprefix (Self, STRs):3 """4 : Type STRS:LIST[STR]5 : Rtype:str6 """7 if notSTRs:8 return ""9 Else :Tenminsub=Strs[0] One forSubinchSTRs: A ifLen (sub) Len (minsub): -minsub=Sub - forSubinchSTRs: the ifsub==minsub: -
GT 650M Independent Graphics card is the forefront of the Nvidia precision technology, can lie on the computer performance up to 4.5 times times the maximum Oh. Also, the Nvidia Optimus (NVIDIA) technology is configured to maximize battery endurance. Let you get rid of battery time not long enough trouble. As the following figure shows, the gt650m independent graphics card believes in parameters.
GeForce
Share, the overall clarity of ideas, about the automatic completion of code in Eclipse, can be configured to customize the library file addressIn fact, the general purpose of this idea, regardless of any eclipse-supported editing language, can be applied. Here are some examples of javascript:
The overall behavior setting
Path: Eclipse Preference (Main interface) Javascript Editor "Content Assist"
This can be set specific code autocomplete behavior, divided into 3 cate
Request.getschema () can return the protocol used by the current page, http or HTTPS;Request.getservername () can return the name of the server on which the current page is located;Request.getserverport () can return the port used by the server on which the current page is located;Request.getcontextpath () can return the name of the app where the current page is located;When you write a JSP page, you always encounter the path problem of various files, and the following code is encountered: St
Java generics
keyword Description? wildcard character type Extends t> represents the upper bound of a type, which indicates that a parameterized type may be a subclass of T or T. The super t> represents the lower bound of the type (called a supertype qualifier in the Java core), indicating that the parameterized type is a supertype of this type (the parent type) until the object
extends Sample
Cla
. As shown in figure:
> 2 Recognition _ Custom components >
A maximum of two digits is 00 when the "unspecified mode" is indicated. namely Measurespec.unspecified
A maximum of two digits is 01 when it means "exact mode." namely measurespec.exactly
The maximum of two digits is 10 when the "maximum mode" is represented. namely Measurespec.at_most
A lot of people once in place Operation Head is big, in o
The App->activity->animation sample is used to demonstrate the dynamic effects of different activity transitions. The example defines two kinds of animation effects, the gradient fade in, the new occurrence of the activity gradually show, amplification effect zoom, new activity from small and large gradually show.
Animation resources in Android can be divided into two categories:
Tween Animation p
In the previous example of Android Apidemo example parsing (9): App->activity->persistent state describes the use of shared preferences to store some states, shared A more general use of preferences is to store some application preferences (settings). Package Android.preference provides many classes that allow applications to display and set application-related preferences. Of course, you can use a cu
A dedicated administrator connection is a special SQL Server server diagnostic connection that is used to connect to a server for server performance or error diagnosis in a normal or standard connection form that cannot connect to a SQL Server server. The DAC also supports secure encryption and only members of the sysadmin server role group have permission to use the DAC. By default, the DAC connection is not allowed to be turned on from clients other than the server, except that the Allow remot
) and varchar (1) The definition of two, what is the difference? Although both can only be used to hold a single character, varchar consumes a storage location more than char. This is mainly because when you use the varchar data type, you use more than 1 bytes to store the length information. This administrative overhead of the char character type is not. ---------------------------------Summary--------------------------------------------- ----------------------------------------------- -------
1) sys.dm_server_services This DMV can tell us the startup status of the services associated with the current version of SQL Server and the time of the last boot, such as this information.SELECT * from Sys.dm_server_services2) Sys.dm_server_registry This DMV can tell us about the configuration associated with the current SQL Server service, and we don't have to open SQL Server Config Mangement to see it. And what it actually reads is the registry information.SELECT * from Sys.dm_server_registr
Label:SQL Server Enterprise Edition is supported for online index rebuilds. So how does an online index rebuild work and how does it affect our queries?Since it is online, SQL Server keeps the existing index available to the user, which means that it does not modify the existing index and its associated statistics. Then it is assumed that the approach is similar to SQL Server switch partition-minimizing data offline time. It should be Mr. Index and statistics, this time the new index and statist
cannot be successful. The difference between the three is summarized as follows: 1) Try_parse only supports character-to-value or time-type, while Try_cast and try_convert support more types; 2) There is a bit more good is the character of the white space processing, as long as the space in the split symbol before and after the "2015/09/10" This can be successfully processed, but if the space is separated by itself is a whole data value part, then all can not be recognized, like "2015/0 9/10".
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