C＃中的Double.IsFinite()方法

Double.IsFinite()方法用于检查double值是否超出范围。

Syntax: public static bool IsFinite (double value);

Return Value: This method returns the true if value is finite otherwise false.

下面的程序说明了Double.IsFinite()方法的用法：

范例1：

// C# program to demonstrate the
// Double.IsFinite() Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        // Declaring and initializing value1
        double value1 = 10d;
  
        // using IsFinite() method
        bool value = Double.IsFinite(value1);
  
        // Displaying the result
        if (value)
            Console.WriteLine("{0} is finite", value1);
        else
            Console.WriteLine("{0} is not finite", value1);
    }
}

输出：

10 is finite

范例2：

// C# program to demonstrate the
// Double.IsFinite() Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        // Declaring and initializing value1
        double value1 = Math.Pow(2, 1000000000000);
  
        // using IsFinite() method
        bool value = Double.IsFinite(value1);
  
        // Displaying the result
        if (value)
            Console.WriteLine("{0} is finite", value1);
        else
            Console.WriteLine("{0} is not finite", value1);
    }
}

输出：

Infinity is not finite