This article lists the MySQL data type list, which consists of five main categories: integer type, floating-point type, String type, date type, and other data types, which are explained in detail in the following five data types. There are also the lengths and ranges of MySQL data types, along with basic principles for using recommendations and selecting data
programmersIt's done here!What else do you want? It's already working, isn't it?Such people simply don't care about the quality of the code, they think it's someone else's job. He quickly completes the required tasks and then goes to the ding-ting academy to see some of the videos you also know. You may not like the way he works, and other programmers hate this kind of person, but experience and customers like him. He will have a lot of pain in your
It is reported/recently, small series of foreign media to see a blog about the design of hand-travel maps, English author Junxue Li (Li Junku) is the game Art outsourcing company Novtilus Art CEO, in his blog, he discussed four different categories of hand travel maps and their respective types of hand travel, And talking about the advantages and disadvantages of these map types, here to share to the indust
("Guo"); "String"
Typeprototype ({}); //"Object"
Can recognize standard types, and built-in object types
Custom type not recognized
4.constuructor points to the constructor that constructs the object itself:
Can distinguish the original type
"Guo". constructor = = = String; True
(1). constructor = = = number; //true
True. Constructor = = = Boolean; True
({}). constructor = =
can use Morthtype.sontype as normal, but the nested type is still free to access all members of the outer type. In fact, this gives a type a strong accessibility, but also exposes a type of private members, which destroys the encapsulation of the type. In this case, the outer type functions as a namespace, which also gives the ability to type some namespaces.The original example is as follows:[Start citation]A static constructor for a nested class does not initialize with the triggering of an e
This section focuses on the following issues:
1. What are the built-in types of 6 sequences in Python?
2. What are the similarities and differences between lists and tuples?
1. What are the built-in types of 6 sequences in Python?Python contains 6 built-in
number of players, you can find this player!
"tom",1=>"andy",2=>"jack");?>
Array provides a fast and convenient way to manage a set of related data, which is an important part of php programming. How to use php? Please refer to the article on how to declare an array in php: two methods to declare an array.
What types of PHP arrays are available?
PHP arrays are divided into three
What is the difference between TEXT and BLOB Field Types in MySQL? mysqltextblob Field
There are two Field Types in MySQL that are confusing, namely TEXT and BLOB. In particular, the bloggers who write their own blog programs do not know whether to change their blog body fields to TEXT or BLOB.
The following are some differences:
I. Main differences
The main diff
One, what are the thinkphp configuration types?
1. In thinkphp, there are 6 configurations. That is, custom configuration, application configuration, extended configuration, module configuration, scene configuration, dynamic configuration.
2. The custom configuration is the system default configuration.
3. Application configuration is the individual configuration of the app that we developed ourselves.
4.
What are the data types of javascript? (via Bat Internet 2014 front-end written interview question: JavaScript article http://www.sxt.cn/u/756/blog/4508)Base data type: string,boolean,number,undefined, Null Reference data type: Object (array,date,regexp,function) question: The values of these basic data types are constants, and constants are not methods, why ca
Often have DIY installed friends will ask, buy motherboard what board type motherboard good Ah, is the choice of the motherboard or small board? For such a problem, sometimes very difficult to answer, because the installed time, the choice of motherboard board type is not only related to the chassis, but also with their own needs. Today, the computer Pepsi Net small make up to specific and everyone to talk about the choice of the motherboard board typ
Click to enter _ more _java thousand ask1. What are the 8 basic data types of Java?Understanding data Types Look here: What is the Java type of dataThe basic data types include 4 categories, each of which corresponds to a wrapper for a class type (wrapper Class), as follows:
understand or understand, let alone what I have done;3. API test/API automation application interface test. We may have heard of API test, but have never heard of API automation;4. Also, reliability tests called software are divided into reliability test, stress test, security test, and performance test, which are common in our recruitment information, that is, performance testing. Therefore, when more people try to study performance testing tools, t
It turns out that the controversy and discussion over flattening has led to a variety of flattened styles. Without argument, there will be no change!
Information level simplification, minimalism, which I think the core of flattening, different designers certainly understand this is also different, we have not found that the recent flattening has changed.
Experiment, add effect, failure! Experiment again, add effect again, succeed, put into practice! It's that simple. So now the flat design has
Transfer from other networks
A while ago, I participated in the development of a WAP website and found that many MIME types need to be added.
What is the MIME type?The MIME type is used to set a file extension. Program When the file with the extension is accessed, the browser automatically opens the file with the specified application.For IIS, if you want to use IIS for wapserver, you must add the MIME t
What are the types of Web page authentication ?. There are two types: SESSION and HTTP authentication. The following is an example of the PHP Chinese Manual: -------------------------------------------------------------------------------------- the user recognizes two types:
One is SESSION and the other is HTTP authen
Java has a total of 8 basic types, byte byte, 8 bits, short shorter integer, 16 bit, int integer, 32 bit, long integer, 64 bit, float single precision floating point, 32 bit, double dual precision floating point, 64 bit, char character type, 16 bit And a Boolean Boolean type. So, what are the basic types that can represent numbers? It's obvious that byte,short,in
in Inux Driver development, what types of events can the input subsystem generate in total? , and what do they mean by distinction? See below:types of events for input devices in Linux areEv_syn 0x00 Synchronization EventsEv_key 0x01 key events, such as Key_volumedownEv_rel 0x02 relative coordinates, such as Shubiao-escalated coordinatesEv_abs 0x03 Absolute coord
Copyright belongs to the author.Commercial reprint please contact the author for authorization, non-commercial reprint please specify the source.Management policyLinks: http://zhuanlan.zhihu.com/Foundation/19569459Source: Know2014-07-07 Update: Apple fully uses instancetype instead of ID in iOS 8Steven Fisher: It's good to use instancetype as long as a class returns its own instance.@interface Foo:NSObject - (id)initWithBar:(NSInteger)bar; // initializer + (id)fooWithBar:(NSInteger)bar; // conve
The USB flash drive is now almost manned, and many people use it to store their important data. For this reason, the USB flash drive brings us convenience and data security issues. So in the storage of important data, we generally have to encrypt the U disk. Find out what types of encryption are available now.
Encryption can be divided into two types, namely, ha
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