list of storage devices

Redis serialized storage Java set List and other custom typesAs the number of application scenarios increases in the project, the Java Collection List is stored. At this time, common code may report errors, such as "unable to serialize" or "serialization failed ~After several hours of Practical Exploration, I have referred to the Code working in seconds and the r

keyExplanation: Removing and returning a footer element[Plain]View Plaincopy Redis 127.0.0.1:6379> Rpop Lst.user "Zhangsan" D) LpopSyntax: Lpop keyExplanation: Removing and returning a footer element[Plain]View Plaincopy Redis 127.0.0.1:6379> Lpop Lst.user "Wangwu" 5) OtherA) LlenSyntax: Llen keyExplanation: Get list length[Plain]View Plaincopy

iOS Development UI Chapter-ios Application Data storage (XML attribute list-plist)One, the iOS application common data storage way1.plist (XML attribute list archive) 2. Preferences 3.NSKeydeArchiver Archive (store custom objects) 4.sqlite3 (database, relational database, cannot directly store objects, to write some da

/************************************************************************************************************** File Description: The chain of linear table storage "single linked list", "Double linked list", "" Cycle list "," Static list "detailed description:" 1 "because of

Tag: While it's font temp post cout enqueued output Enter The key of storing binary tree is how to express the logical relationship between the nodes, that is, the relationship between parents and children. In a specific application, a child may be required to be directly accessible from either node.One or two cross-linked listBinary tree is generally used in binary chain list (binary linked list)

Definition of hash table:The basic idea of hash storage is to calculate the corresponding function value (hash address) with the keyword key as an independent variable, through a certain function relation (hashing function or hash function), take this value as the address of the data element, and deposit the data element into the storage unit of the corresponding address.The hash address is computed using t

#include"string.h"#include"ctype.h"#include"stdio.h"#include"stdlib.h"#include"io.h"#include"math.h"#include"time.h"#defineOK 1#defineERROR 0#defineTRUE 1#defineFALSE 0#defineMAXSIZE 1000/* Storage space Initial allocation */typedefintStatus;/*Status is the type of the function, whose value is the function result status code, such as OK, etc.*/typedefCharElemtype;/*the Elemtype type is based on the actual situation and is assumed to be char*/Status Vi

1 , overview"Archive" means to persist the storage of data. The plist file is an XML-formatted file that expands to the name plist. If the object is NSString, Nsdictionary, Nsarray, NSData, NSNumber, and so on, you can use the writetofile:atomically: method to write the object directly to the property list file (the plist file). the special attention is plist The file cannot store the object. IOS common fil

);}CallintMainintargcConst Char* argv[]) {//Insert code here ...Dulinklist L; Elemtype e;intJ Status i; Initlist (AMP;L);/ * Initialize single-loop linked list L * /Listinsert (L,1, the); Listinsert (L,2, -); Listinsert (L,3, *); Listinsert (L,4, $); J=listlength (L);printf("Number of data elements in L =%d\n", j); Listtraverse (L,visit); Priorelem (L, -, e);/ * Seek the precursor of element 5 * / printf("25 The value of the preceding element

In order to represent the logical relationship between each data element AI and its immediate successor element Ai+1, the data AI, in addition to storing its own information, also needs to store a message indicating its immediate successor (i.e., the immediate successor storage location). These two pieces of information form the storage image of the data element AI, known as node (node). n node chains form

) {printf ("enter vertices to create a table of vertices:"); //Creating a vertex tablescanf"%d",g->list[i].data); //initializing in and out pointersg->list[i].firin=g->list.firout=NULL; } intx, y; for(intI=0; i) {printf ("read IN (VI-VJ):"); scanf ("%d%d",x,y); Arcbox*a = (Arcbox)malloc(sizeof(Arcbox)); intk,j; K= Localvex (x,g);//K is the position of the arc tailj = Localvex (y,g);//J is the position o

Redis storage supports a type that does not have an object, although it supports list, but only supports listThere are two ways to implement storage objects and generics1. Serialization and deserialization2.jsonSerialization tool class to implement serialization and deserialization of Session objects and list collectio

our stress test, found that performance is acceptable, in addition to the Zset Rev correlation function, the rest can be kept with Redis at the same order of magnitude, You can refer to the performance test report in Ledisdb and run Ledis-benchmark own test. Subsequent LEDISDB will continue to optimize performance while providing support for expire and replication features, which we expect to achieve in June. Ledisdb code here Https://github.com/siddontang/ledisdb, want to be interested in the

iOS Development UI Chapter-ios Application Data storage (XML attribute list-plist)One, the iOS application common data storage way1.plist (XML attribute list archive) 2. Preferences 3.NSKeydeArchiver Archive (store custom objects) 4.sqlite3 (database, relational database, cannot directly store objects, to write some da

iOS Development UI Chapter-ios Application Data storage (XML attribute list-plist)One, the iOS application common data storage way1.plist (XML attribute list archive) 2. Preferences 3.NSKeydeArchiver Archive (store custom objects) 4.sqlite3 (database, relational database, cannot directly store objects, to write some da

Graphs are extensions of trees. This blog post mainly describes the storage of graphs. Graph storage includes: the graph's Adjacent matrix, the graph's adjacent linked list, and the cross linked list. 1. the adjacent matrix of the graph is nothing more than a one-dimensional array and a two-dimensional array. A one-dim

Summarize the static linked list today.What is a static linked list?I understand that a static list is a pseudo-linked list because it does not use pointers. A static linked list is implemented using an array , which is an array of structures, composed of data fields and poi