Design Pattern Explained Reading Notes 4 -- Strategy, patternexplainedWhat?
Define a family of algorithms, encapsulate each one, andMake them interchangeable. Strategy lets the algorithmVary independently from the clients that use it. -- GOF
Define a series of algorithms, encapsulate each and make each encapsulation replaceable. The
; /** * Amount of wages to be paid */ Private double currency = 0.0; /** * Interface of the wage payment method Policy */ Private paymentstrategy strategy = NULL; /** * Constructor: the amount to be paid and the specific payment policy of the person to be paid * @ Param Username: the person who is paid the salary * @ Param money the amount to be paid * @ Param strategy specific payment policy *
;} Cclog ("Change");}Effect:Here it will automatically switch different bullets every 5s, due to the limitations of uploading pictures. It's the only way.Iii. SummaryIsn't it convenient? When I need to add a bullet type, I only need to inherit bulletstyle. Then rewrite the function shootbullet (float DT). Then in the position where the bullet needs to be changed, bool Herobulletlayer::changebullet (int number) increases every 4 bullets. The 5th Seed b
(); Intbublesorter.sort (array); for (int i=0;i) { tracelog.i (array[i].tostring ()); }}}This allows the bubble sort to be achieved.The principle of agile development is not necessarily to use design patterns, to see the situation, to see the need. So here it can be said that this bubblesorter some redundant, direct genericbubblesorter use, and implementation of the sorting algorithm can be, depending on the situation.But sometimes we want to isolate the sor
algorithm is described as follows:The ① decomposition Matrix A,b,cAlso do not create sub-arrays but just subscript calculations.② creates a matrix S1,s2,s3...,s10 of 10 n/2xn/2, which is calculated as follows:The ③ calculates 7 matrices of P1 recursively, P2 ... P3,P7, the calculation formula is as follows:④ calculates the CIJ and calculates the formula as follows:The implementation code is not given, similar to the above.3. Algorithm Analysis(1) Common matrix multiplicationFor normal matrix mu
-Backup in the user backup data automatically encrypted data compression and upload to multiple cloud platforms, the use of 3-layer encryption security system to achieve the highest data security.SummarizeBig data can continue to enjoy the scalability, flexibility, and automation provided by cloud computing, only by establishing the strictest security standards for data. Encryption is considered the first step in protecting Cloud (large) data. New technologies such as split-key encryption and ho
, occupy large storage space, But there are two very important advantages, hibernate in maintaining the primary key, do not go to the database query, thereby improving efficiency, and it is a cross-database, and later switching the database is extremely convenient.Features: UUID length, occupy large space, cross-database, without accessing the database to generate the primary key value, so high efficiency and can guarantee uniqueness, porting is very convenient, recommended use.6, assignedThe pr
Alas... Today, I deleted animations and games again, but it is still worthwhile for the ego game to be downloaded! 4 ~ Please refer to the following link for more information ~ Special Edition is better than this special edition ~ The four generations of games have been completed, and MS is now available for 1 ~ It is quite difficult to say that the three generations of CD images. It seems like there are too many other users! I haven't made a Chinese
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