C# 中的 Double.IsInfinity() 方法
csharpserver side programmingprogramming更新于 2025/11/24 17:29:00
C# 中的 Double.IsInfinity() 方法用于返回一个值，该值指示指定数字的计算结果为负无穷大还是正无穷大。
语法
语法如下 −
public static bool IsInfinity (double d);
上面，值 d 是一个双精度浮点数。
示例
现在让我们看一个例子 −
using System;
public class Demo {
public static void Main(){
double d = 5.5;
Console.WriteLine("Double Value = "+d);
Console.WriteLine("HashCode of Double Value = "+d.GetHashCode());
TypeCode type = d.GetTypeCode();
Console.WriteLine("TypeCode of Double Value = "+type);
Console.WriteLine("Positive Infinity? = "+Double.IsInfinity(d));
}
}
输出
这将产生以下输出 −
Double Value = 5.5 HashCode of Double Value = 1075183616 TypeCode of Double Value = Double Positive Infinity? = False
示例
现在让我们看另一个例子 −
using System;
public class Demo {
public static void Main(){
double d = 1.0/0.0;
Console.WriteLine("Double Value = "+d);
Console.WriteLine("HashCode of Double Value = "+d.GetHashCode());
TypeCode type = d.GetTypeCode();
Console.WriteLine("TypeCode of Double Value = "+type);
Console.WriteLine("Positive Infinity? = "+Double.IsInfinity(d));
}
}
输出
这将产生以下输出 −
Double Value = ∞ HashCode of Double Value = 2146435072 TypeCode of Double Value = Double Positive Infinity? = True
