1. implicit and explicit Initialization
1.1 C ++ implicit InitializationInt ivals (1024 );String Hello ("Hello world .")
1.2 C ++ Explicit initializationInt ivals = 1024;String Hello = "Hello world ."
* PS: note that the "=" syntax here is the
1. What is type conversionThere are related dependencies between some types, and values or objects of related types of that type are used at an operand location that requires a type.
2. What is implicit type conversionConversion rules are
Original: http://www.cnblogs.com/visayafan/archive/2011/11/27/2265349.htmlTurn http://blog.csdn.net/callmeback/article/details/4039304Not translated, relatively simple.This is Ansi/iso C + + Professional Programmer ' s handbook.Explicit
class type implicit conversionsIf the constructor accepts only one argument, it actually defines the implicit conversion mechanism for converting to this type, and sometimes we call this constructor a transformation constructor (converting
C # use is, as or explicit forced conversion for reference type conversion ?, Cf
In C #, when the reference type needs to be converted, the keywords is, as, and explicit forced conversion are often used. This article describes how to use these three
The implicit keyword is used to declare an implicit user-defined type conversion operator. (Explicit and vice versa) explicit is used to display and convert user-defined types.Static Implicit operator target_type (source_type identifier
Document directory
Checked
Nullable)
We know that all reference types can assign null values to indicate null references, while value types cannot assign null values.
Difference between value type and reference type
To understand why, you have to
For JS this language, because it is a dynamic type language, the variable is no type, can be given any value at any time.However, the data itself and the various operations are typed, so the variable needs to be converted to the type of operation.In
Analysis of MySQL explicit type conversion, analysis of mysql explicit
CAST Function
In the previous article, we mentioned the CAST function for display type conversion. There are many benefits to avoid implicit type conversion. In fact, there are
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->/*
* Created by sharpdevelop.
* User: noo
* Date: 2009-9-1
* Time:
*
* The predefined Data Types of the system, such as int, float, double, and string,
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