access array

1. Nskeyedarchiver (encrypted form) 2.  Plist 3.  Nsuserdefaults 4.  WriteToFile 5. SQLite3= = = Nskeyedarchiver ========================================-------CKPerson.h Code@interface Ckperson:nsobject@property (nonatomic, copy) NSString *name;

1,javascript is a scripting language that is Object-and event-driven and has security performance;Features of 2,javascript:1) Add interactive events to HTML;2) scripting language, similar to Java syntax;3) Explanatory language, side execution side

The following table lists the JavaScript operators, sorted from highest to lowest in order of precedence. operators that have the same precedence are evaluated in order from left to right. Operator Description . [ ]

Reshape variable modifier change storage space for shaping variable short int a=4 short 2 byte%hdint 4 byte%d long 8 byte%ld long long 8 byte%lld shaping variable modifier Storage space for non-shaping variables int short long longlong change the

definition of an array :an array in JavaScript is a special object that represents an index of an offset that is a property of that object, which is likely to be an integer. However, these numeric indexes are internally converted to string types

A line of Magic JS Code, is in a blog park inside see, then I was shocked, this is not the legendary ZB magic ... Haha (decisively reproduced over). The reason for writing an article is that before the group of Ink dust sent a section of JS code, as

Chapter 2 Arrays and ArrayLists Arrays are the most common data structures that appear in almost all programming languages. Using data in C # is essentially creating an Array object of the System. Array type. The System. Array class is composed of

The subscript of the array in shell starts from 0 by default. 1. Put the string in an array to obtain its length. #! /Bin/bashStr = "a B -- n d"Array = ($ str)Length =$ {# array [@]}Echo $ length For (I = 0; I DoEcho $ {array [$ I]}Done Execution

The JavaScript operator Learning Essentials:An expressionOperators: Unary operators, arithmetic operators, relational operators, logical operators, * bitwise operators, assignment operatorsI. ExpressionsExpressions have constant expressions,

Pku c ++ Programming Practice Study Notes 4 Operator Overloading Chapter 4 Operator Overloading4.1 basic concepts of Operator Overloading 1. Operators 2. Custom Data Types and Operator Overloading C ++ provides data abstraction means: You can define

PHP two methods to implement stepless recursive classification, php two methods of Stepless Recursion For more information, see the code: /*** Stepless recursive classification TP framework * @ param int $ assortPid parent id of the category to be

The operator priority in JavaScript is a set of rules. This rule controls the order in which operators are executed when calculating expressions. Operators with higher priority are executed before operators with lower priority. For example,

Common table structures and data structure of data structures Recently, I thought it was necessary to combine my blog park with my accumulation in recent years. some common tables in Net are summarized once. On the other hand, I hope to help you

The priority of an operation is the order in which operations are performed during the evaluation of an expression. An operation with a higher priority performed first, followed by a lower-priority operation. For example, execute multiplication

C # array declaration, C # How to declare a one-dimensional array Int [] myArray; String [] myStrArr; However, Initialization is required before accessing the array. C # two methods are available for Array initialization. The first method is to

This list collects some Obscure features of the C ++ language. It is collected from various aspects of the language I have been studying for years. C ++ is very large and I can always learn some new knowledge. Even if you are familiar with C ++, I

This article focuses on the implementation of basic concepts related to programming in Java, which involves a lot of fine content, including annotations, data types, variables, operators, strings, input and output, control flow, large values and

Compound assignment operator Operator Symbol Addition + = Bitwise AND & = By bit or | = Bitwise OR ^ = Division /= Move left Modulo % =

Transfer from http://blog.sina.com.cn/s/blog_75cf5f3201011csu.htmlone: About the basic data types in the relationship between stack memory and heap memoryThe basic data for the stack memory and heap memory can be copied, you can assign the data in a

An array is an unordered list variable that stores scalar values.Array variables begin with @. Access array elements are read by using the $ + variable name + [index value] format as follows:#!/usr/bin/perl @names = ( "google" , , "Taobao"