shorthand strokes

Often in the code of the cattle everywhere see many shorthand conditional expression statements, read some articles about this, feel 3 ways 2 s ay iF This article (http://www.thomasfrank.se/3_ways_2_say_if.html) is not bad. In this article, the author of the traditional If...else ...,?:, /| | The characteristics and usefulness of three kinds of conditional expressions are summarized and summarized as follows: 1. If...else structure Set

:\Documents and Settings\ Current user name \local Settings\Temp %ProgramFiles% C:\Program Files %commonprogramfiles% C:\Program Files\Common Files Docum~1 Documents and Settings Progra~1 program Files The disk partition on which the%systemdrive%:windows system resides, usually the root of the C disk The directory where the%systemroot%,%windir%:windows system is located, usually the C:\Winows %programfiles%: Normally it's C:\program files. %commonprogramfiles%: Common file directory, usually C:\

Margin (margin) Margin-top Margin-right Margin-bottom Margin-left The shorthand order is clockwise (top, right, bottom, left), such as: margin:1px 2px 3px 4px;One of the four sides is equal when it can be shortened to one, such as: margin:1px;When the upper and lower, the left and right respectively are equal, can also be abbreviated, such as: margin:1px 2px; Represents up and down 1px, around 2pxOnly when the left and

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;Customizable default values-by setting reasonable parameter values for the method parameters, you can significantly improve the user experience of using the plug-in, but depending on the consumer, it may be difficult to determine the default value, you can customize the default value to reduce the number of code to write-the so-called custom default is to remove the default value code from the method and place it outside the method650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M01/7E/74

The HTML code is cumbersome to write because it has more tags. One way to solve this problem is to use templates to fill in your own content in a skeleton written by someone else. Another is the method I want to introduce today----shorthand method. The commonly used shorthand method, currently mainly is Emmet and Haml two kinds, this article all will introduce. These two kinds of simple writing, th

change the login shell within the scope specified in this file. Provide aThe service process of the Machine FTP service FTPD checks whether the user shell is listed in the/etc/shells file, and if not, the user will not be allowed to log on./ETC/TERMCAP: Terminal performance database. Describes what "escape sequence" controls are used by different terminals. No direct output escaping when writing programsSequence (this works only with a particular brand of terminal), but instead looks for the co

DirectoryPWD = Print working Directoryrc = runcom = Run command, RC or Plan9 shellRev = REVerseRM = ReMoveRN = Read NewsRoff = runoffRPM = RPM Package Manager = RedHat Package ManagerRsh, rlogin, r = Remote in RvimRXVT = Our XVTSeamoneky = ised = Stream EDitorSeq = SEQuenceShar = SHell ARchiveSLRN = S-lang RNSSH = Secure SHellSSL = Secure Sockets LayerStty = Set TTYSu = Substitute user or Switch user (the former is more common)sudo = Superuser/substitue user do is more prone to superuser under

First type: IF condition statementThe second type: three mesh operationThe third kind of:, | | Conditional statements made up ofThe first kind: IF do not say, this is the foundation, I believe most people will;The second kind: C=a>b? True:false//means: If the a>b is true then return true, otherwise return false (of course, can be replaced with a statement), and return the result to C;The third type:1. In most languages, he means and meaning, that is, the left and right sides are true, using PHP

As follows Copy Code code as follows: var ary =/h/(' hello '); alert (ary); Error in IE6/7/8/9 The latest version of Firefox/safari/chrome/opera pops up "H" The above wording is equivalent to Copy Code code as follows: var ary =/h/.exec (' hello '); That is, the Exec method can be used in the Firefox/safari/chrome/opera browser to remove "exec" using the "regular direct amount + ()" method. IE10 Platform Preview still does not support this

Eloquent relationships Shorthand table there is a big pit in the Model association: When the Belongsto is reversed, the foreign key is automatically searched by the method name plus _id. In addition, the association is based on the model name plus _id as the foreign key. Type Define Inverse Remark One to one HasOne Belongsto Withdefault ()Define default foreign key→based on the model nameInverse defau

.xsdContext:component-scan base-package = "com.spring.test"/>aop:aspectj-autoproxy/>2) Another way to configure XML: Public class Logaspect { publicvoid Beforeservice () { System.out.println ("before ..."); } Public void Afterservice () { System.out.println ("After ..." ); Public void logafterreturn (user user) { System.out.println ("after return ..." +User);} }Configuration:BeanID= "Logaspect"class= "Com.spring.test.aop.LogAspect" />Aop:config>Ao

offset of i:0x10 This time there was no previous optimization. Can infer: g++ if the parent class is also a derived class when the parent class is guaranteed to be intact, the parent class will only guarantee the intact integrity of the fragment .That is, in the first code example, the intact integrity of the Father class in the son class is done by guaranteeing the Grandpa class's intact rows and the integrity of the data unique to the Father class char a2 . So though the size of

Key words: dbpartition by hash (' investor_apply_id ')Format: Dbpartition by hash (Sub-Library field)Create an example:CREATE TABLE ' bb_jyls_new ' (' id ' int (one) not NULL auto_increment,' source_code ' varchar DEFAULT NULL,' source_product_code ' varchar DEFAULT NULL,' Trans_type ' int (one) DEFAULT NULL,' trans_type_dec ' varchar DEFAULT NULL,' Trans_money ' decimal (16,2) DEFAULT NULL,' trans_name ' varchar DEFAULT NULL,' Trans_idcard ' varchar (+) DEFAULT NULL,' Trans_date ' Date DEFAULT

Remember that margins (margin), padding (padding), and border (border) settings are set in a clockwise direction, up or down in four directions, in the box model: upper right bottom left. Examples of specific applications in margin and padding are as follows:margin:10px 15px 12px 14px;/* set to 10px, right set to 15px, lower set to 12px, left set to 14px*/There are three abbreviations that are commonly used:1. If the values of top, right, bottom, and left are the same, such as the following code

We'll learn how to avoid the boilerplate code in Mapdispatchtoprops () for the common case where action creator arguments Match the callback prop arguments.Current Code:// Visibletodolist.jsConst MAPDISPATCHTOPROPS = (Dispatch) + = { return { Ontodoclick: (id) + = { Dispatch (Toggletodo (ID)); }, };};Const VISIBLETODOLIST = withrouter (Connect ( Mapstatetoprops, Mapdispatchtoprops) (todolist));The ID we pass from Ontodoclick are the same as in Toggletodo and

Shorthand, writing a notebook app with a reminder function.Fanqiang Download:Https://play.google.com/store/apps/details?id=com.revfycd.colorfullDayThe feature is to solve the troublesome way of entering time for other applications,Use a colloquial way to complete the parsing of time,For example, enter "Tomorrow 12 points", the current time will be the same, calculate the 12 points tomorrow.Another example is "Next week 3XX", "20 minutes later", "X-poi

One: "+ +", "--" operation in the judgment and other statements directly used will reduce the code length: Example 1: The following squeeze (s,c) function, which deletes the string s appears to be all characters c:void squeeze (char s[],int c) {int i,j;for (i=j=0;s[i]! = ' s[i '; i++) {if (s[i]! = c) {s[j++] =); }} S[j] = ' + ';}Where the If statement is simplified by the following if statement: if (s[i]! = c) {S[j] = s[i]; j + +;}Three: Define # define with a macro: #define MAX (A, B) ((a) > A)

RBAC ModelCore Concept:user,role,permission,operation,resource User have many roles, assign role to user; One role can be assigned to many users. User have many permissions, assign permission to user; One permission can assigned to many users. Operation is like add, UPDATE, delete, import, download, visible, invisible, etc. Resource is like a menu, button, or other screen elements. Permission has many resources and operations; One resource can used by many permissions; One oper

One, Label control (Class)Property:(a) Layout:Width: Available in both pixels and percent type: UnitHeight: Available in pixels, also available as percent type: unitunit.pixel (pixels) unit.percentage (percent)(ii) Background and prospectsBackColor: (color) Background colorForeColor: (color) text colorFontName: Font namesSize: Font sizesBold:Italic:Underline:(c) BorderBorderColor:BorderStyle:BorderWidth:(iv) Other:Text-label textVisable= is visibleEnabled-is available.CssClass-Class in the style