certain state data in the activity, such as the state of various UI controls in the activity, if we do not have the Onsaveinstancestate () method. If we need to overwrite the Onsaveinstancestate () method, we typically call the default implementation of the method in the first line of code: Super.onsaveinstancestate (outstate)
principles of data storage and recovery dataWhen the screen direction is switched, the activity is reset by the system, and the Onsaveinstancestate function is called to
methods to get status objects. One is to define a state class and declare the state as static for retrieval. It does not need to consume memory for instantiation. If you want to attack the state, AllState. actState can be used ,:
using UnityEngine;using System.Collections;public class AllState{public static State actState = new ActState();public static State jumpState = new JumpState();…….}
However, this
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#,status fromv$log; group#status---------- ----------------1CURRENT 2inactive3 inactive 4unused5 UNUSED6UNUSED current Redolog status, Group1 is the current online log group, group2, 3 for inactive, we want to delete is 50M group1, 2, 3group1 is the current online log group, can not delete, can now delete inactive group 2, 3sql>alterdatabasedroplogfile group2;databasealtered. SQL>alterdatabase droplogfilegroup3;databasealtered. 5. multiple SWITCHlog switch logs until group1 is inactive status
1.linq inside-like querylistlistvar q = from S in sourceFrom P in pxwhere s==pSelect S;2. Get the set of P.dstate in (1, 100,200) inside the setlistif (queryString = = "AllState"){Datasouce = new observablecollectionFrom the IDs in ppwhere p.dstate = = IDsSelect P). ToList ());}3. Filter the data set according to a condition querystring is the conditionDatasouce = new ObservablecollectionQuery in LINQ like in
Poj3254 -- Fields + state compression dp
The first State compresses dp :)
Consider the situation of each row. If we make 0 to indicate that grazing is not allowed, 1 to indicate grazing, then all feasible situations in this line can be outputted and correspond to a decimal number; this is the state compression. Then, the question can tell whether the status of each row can appear only in relation to the row before it, therefore, we can define dp [I] [j] to indicate the number of grazing methods
state of the object to be shared */Public concreteflyweight (string state) {This. intrinsicstate = State;} public void operation (string extrinsicstate) {// specific function processing, you may use the internal and external statuses of the object you want to share }}***************************** **************************************** * **************************** package demo19.flyweight. example2;/*** do not need to share the flyweight object. Generally, the shared metadata object is used
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