what enum

Introduction to LUA values and types in LUA 5.1 Reference Manual. Lua is a dynamic language, where variables have only values and no types in Lua. So variables in Lua do not need to be declared. So the value itself contains the type.In fact, Lua

Original URL: http://blog.csdn.net/wgw335363240/article/details/6359614Java enum-type enum useWhen I recently discussed the issue with my colleagues, my colleague suddenly mentioned why the constant values defined in Java do not take the ENMU

In programming languages, we are exposed to enum types, and we usually have poor enumerations to implement some limitations. Java is no exception. The enumeration type in Java is enum, and this article provides some more in-depth analysis of

This article only discusses how to define a more readable Enum in solidmcp, which is also a side effect of cracking clean code and readable code. -- Piaoger > Several methods for defining Enum In fact, the main difference between these forms

An explanation of the enumeration types in Java:Simple example: Public enum color{ red,blue,black,yellow,green } Complex examples (with custom construction methods and types) Public enumenumtest {FRANK ("The given name of me"), LIU ("The

In my past experience, if I had to decide whether to use the enum data type of mysql, I would give up ENUM () and replace it with tinyint without thinking about it, the reason is what scenarios I have used before and are suitable for use. In my past

PHP's low-level programming brother came to look at this problem. I wrote the following transcript and expected to objectively understand the advantages and disadvantages of this enum field: Yi's opinion: enum has advantages. But I personally think..

Use the enum field of mysql with caution, and use the mysqlenum field with caution. The PHP low-level programming team looks at this issue as follows. I hope to objectively understand the advantages and disadvantages of this enum field: YAN Ge's

Usage One: ConstantsBefore JDK1.5, we defined constants: public static fianl ..... Now, with enumerations, you can group related constants into an enumeration type, and enumerations provide more methods than constants. Public enum Color { RED,

This article from: http://blogs.msdn.com/abhinaba/archive/2005/10/20/483000.aspx   I saw two posts on enums today on Eric lipperts and Chris rathjen's blog. enums are significantly different from the other types and people run into unusal problems

Example:public enum Enumtest {FRANK ("The given name of Me"), LIU ("The family name of Me");     Private String context;     Private String GetContext () {return this.context;     } Private Enumtest (String context) {This.context = context; public

I saw two posts on enums today on Eric lipperts and Chris rathjen's blog. enums are significantly different from the other types and people run into unusal problems while working with them. C ++ The CLI Enum is considerably different fromNativeC ++

Enum is called enumeration. It is a new feature introduced in JDK 1.5 and is stored in the Java. lang package. The following are some of my experiences and conclusions in using Enum, including: 1. Original interface definition constant 2.

Note: Python version 3.x can be usedEnumeration format:from enum import enumNew Class name = Enum (variable name, variable 1, variable 2 ...)month = Enum (' Month ', (' Jan ', ' Feb ', ' Mar ', ' Apr ', ' may ', ' June ', ' Jul ', ' April ', ' Sep ',

Detailed explanations of ENUM types in MySQLEnum typeAn ENUM is a string object whose value is usually selected from a list of allowed values, which is explicitly enumerated in the column specification when the table is created.A value can also be

Recently, I used this concept in the generalized table of data structure, and did not pay much attention to it when I learned C language.I combine a lot of information on the Internet, here to summarize their own.First, there are enumerated types in

Li Hongqiang iOS Development-usage of enum and typedef enum01-Defining Enum typesWe're going to define an enumeration type in ViewController.h, where the value of an enumeration type defaults to a contiguous natural number , for exampleto_be_paid=0,/

This model is built in models, in which the method of obtaining an enumeration class is writtenDo not pirated, reproduced please add the source Http://blog.csdn.net/yanlintao1Class Student extends zend_db_table{protected $_name = ' student

Background: currently, tinyint is widely used for enum. is enum useless? The PHP low-level programming team looks at this issue as follows. I hope to objectively understand the advantages and disadvantages of this enum field: Yan Ge's point of view:

  Java's Enum Enumeration type has finally appeared in j2se1.5. I thought it was just a chicken rib, but it was dispensable. After all, have you ever had a good life without it for so many years? Today, I read thinking in Java 4th edition, which