salami slicing

operation. Evaluate tradeoffs based on actual application scenarios.1. Indulge the application by storing the table associated with the join in the same database as soon as necessary.2. Let the application do more things, the program completely through the module interface to obtain data from different databases, and then complete the join operation in the program.After such vertical slicing, the service can be divided into four databases to provide

0. Preface In order to solve the problem of raster slicing, long slicing time, large amount of data transmission and weak style customization ability, more and more enterprise cases begin to use vector deception as the way of map loading in Webgis. So far, the more successful and common use of vector slicing technology flow, mainly divided into the following two

: Reference type The key must be a type that supports equality comparison (= = =), for example: number,string,array,struct, etc. Value can be of any type It can be dynamically scaled and there are no restrictions Definition syntax:map[keyType]valueType{ key1: value1, key2: value2, ... }// eg:m := map[string]int{ "age": 10, "month": 12, "day": 7, "num": 1, // 这里最后一行必须加上逗号，要不然，就把 "}"放在这个一行}You can also use the Make function to define a map to he

After Advice Processing after a call Throw Advice Exception handling thrown at the time of the call Execution com.sea.web.controller.UserController. * (..))execution : Indicates executionFirst *: return value ; This means that whatever the return value is.Com.sea.web.controller.UserController: denotes that classSecond *: Presentation method: All Methods under Class*(..) : All methods, methods of any parameters are executedanotation Annotation

check, permission interception, etc.@Override Publicboolean prehandle(httpservletrequest arg0, HttpServletResponse arg1, Object handler) throws Exception { System. out. println ("Handlerinterceptor1....prehandle"); Handlermethod Handlermethod = (Handlermethod) Handler; ///The class name HandlerMethod.getBean.getClass () can be intercepted by the Interceptor . GetName ();Get Method Name　　Handlermethod. GetMethod (). GetName (); // set to True, test using return true ; }}2. Inte

Slice (slicing) action The slice operations of multidimensional data in NumPy are the same as those in Python for list slices. The parameters are composed of three parts of Start,stop,step. Import NumPy as np arr = Np.arange (a) print ' array is: ', arr slice_one = arr[:4] print ' slice begins at 0 And ends at 4 are: ', slice_one slice_two = arr[7:10] print ' slice begins at 7 and ends at: ', Slice_two s Lice_three = Arr[0:12:4] print ' slice beg

Tutorial 1. Drag out the guides to enlarge the document so that the guides are more accurate. Figure 1 2. Using the slicing tool, first slice the top edge and the circle below. Figure 2 3. This step, cut out the left and right slices, single pixel slices, you need to enlarge the canvas to 1600/%, so that you can select a single pixel. In a Web page, the slices on the left and right end up as cells, and if the contents of the middle cell are n

database through Changelog:Mongos> Db.changelog.count ({What: "Split"}) is 2mongos> Db.changelog.count ({What: "Movechunk.commit"}). Count () 2014-11-08t20:12:09.618+0800 Typeerror:object 1 have no method ' count ' mongos> db.changelog.find ({what: " Movechunk.commit "}). Count () 1mongos> Db.changelog.find ({What:" Movechunk.commit "}) {" _id ":" WIN--20141018KO-2014-11-08T11:01:40-545DF8141603DFC967D0FDCD "," Server ":" Win--20141018ko "," clientAddr ":" 127.0.0.1:50644 "," Time ": Isodate ("

Slicing a listTaking a partial element of a list is a very common operation. For example, a list is as follows:>>> L = [' Adam ', ' Lisa ', ' Bart ', ' Paul ']What should I do if I take the first 3 elements?Stupid way:>>> [l[0], l[1], l[2]][' Adam ', ' Lisa ', ' Bart ']The reason why is stupid is because of the extension, take the first n elements will be out of the way.Take the first N elements, which are the elements indexed as 0-(N-1), and you can

Algorithm | Web page | question This is my study of the Web page slicing algorithm, a summary of ideas. I have written before: A search engine-oriented web page chunking, slicing the principle of implementation and demonstration, with the deepening of the work, and gradually encountered the following problems: Granularity of page slices: The purpose of the web slicing