C#中的Double.IsInfinity()方法
C#中的Double.IsInfinity()方法用于返回一个值，该值指示指定的数字是负数还是正数。
语法
语法如下-
public static bool IsInfinity (double d);
上面的值d是双精度浮点数。
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));
}
}输出结果
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
现在让我们来看另一个示例-
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));
}
}输出结果
这将产生以下输出-
Double Value = ∞ HashCode of Double Value = 2146435072 TypeCode of Double Value = Double Positive Infinity? = True
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