Double.MaxValue 字段
表示 Double 的最大可能值。此字段为常数。
**命名空间:**System
**程序集:**mscorlib(在 mscorlib.dll 中)
语法
声明
Public Const MaxValue As Double
用法
Dim value As Double
value = Double.MaxValue
public const double MaxValue
public:
literal double MaxValue
public static final double MaxValue
public const var MaxValue : double
备注
该常数值为 +1.79769313486232e308。
示例
下面的代码示例演示 MaxValue 的用法:
Public Class Temperature
Public Shared ReadOnly Property MinValue() As Double
Get
Return Double.MinValue
End Get
End Property
Public Shared ReadOnly Property MaxValue() As Double
Get
Return Double.MaxValue
End Get
End Property
' The value holder
Protected m_value As Double
Public Property Value() As Double
Get
Return m_value
End Get
Set(ByVal Value As Double)
m_value = Value
End Set
End Property
Public Property Celsius() As Double
Get
Return (m_value - 32) / 1.8
End Get
Set(ByVal Value As Double)
m_value = Value * 1.8 + 32
End Set
End Property
End Class
public class Temperature {
public static double MinValue {
get {
return Double.MinValue;
}
}
public static double MaxValue {
get {
return Double.MaxValue;
}
}
// The value holder
protected double m_value;
public double Value {
get {
return m_value;
}
set {
m_value = value;
}
}
public double Celsius {
get {
return (m_value-32.0)/1.8;
}
set {
m_value = 1.8*value+32.0;
}
}
}
public ref class Temperature
{
public:
static property double MinValue
{
double get()
{
return Double::MinValue;
}
}
static property double MaxValue
{
double get()
{
return Double::MaxValue;
}
}
protected:
// The value holder
double m_value;
public:
property double Value
{
double get()
{
return m_value;
}
void set( double value )
{
m_value = value;
}
}
property double Celsius
{
double get()
{
return (m_value - 32.0) / 1.8;
}
void set( double value )
{
m_value = 1.8 * value + 32.0;
}
}
};
public class Temperature {
public static function get MinValue() : double {
return Double.MinValue;
}
public static function get MaxValue() : double {
return Double.MaxValue;
}
// The value holder
protected var m_value : double;
public function get Value() : double{
return m_value;
}
public function set Value(value : double) {
m_value = value;
}
public function get Celsius() : double {
return (m_value-32.0)/1.8;
}
public function set Celsius(value : double) {
m_value = 1.8*value+32.0;
}
}
平台
Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition
.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表,请参见系统要求。
版本信息
.NET Framework
受以下版本支持:2.0、1.1、1.0
.NET Compact Framework
受以下版本支持:2.0、1.0