C#中的Single.ToString()方法用于将该实例的数值转换为其等效的字符串表示形式。
语法如下-
public override string ToString ();
现在让我们看一个例子-
using System; public class Demo { public static void Main(){ float f1 = 10.0f/0.0f; float f2 = -3.0f; Console.WriteLine("Value1 (String representation) = "+f1.ToString()); Console.WriteLine("Hashcode for Value1 = "+f1.GetHashCode()); Console.WriteLine("TypeCode for Value1 = "+f1.GetTypeCode()); Console.WriteLine("Is Value1 value is positive or negative infinity? = "+Single.IsInfinity(f1)); Console.WriteLine("Is Value1 NaN? = "+Single.IsNaN(f1)); Console.WriteLine("Is Value1 a positive infinity? = "+Single.IsPositiveInfinity(f1)); Console.WriteLine("\nValue1 (String representation) = "+f2.ToString()); Console.WriteLine("Hashcode for Value2 = "+f2.GetHashCode()); Console.WriteLine("TypeCode for Value2 = "+f2.GetTypeCode()); Console.WriteLine("Is Value2 value is positive or negative infinity? = "+Single.IsInfinity(f2)); Console.WriteLine("Is Value2 NaN? = "+Single.IsNaN(f2)); Console.WriteLine("Is Value2 a positive infinity? = "+Single.IsPositiveInfinity(f2)); } }
输出结果
这将产生以下输出-
Value1 (String representation) = ∞ Hashcode for Value1 = 2139095040 TypeCode for Value1 = Single Is Value1 value is positive or negative infinity? = True Is Value1 NaN? = False Is Value1 a positive infinity? = True Value1 (String representation) = -3 Hashcode for Value2 = -1069547520 TypeCode for Value2 = Single Is Value2 value is positive or negative infinity? = False Is Value2 NaN? = False Is Value2 a positive infinity? = False
现在让我们来看另一个示例-
using System; public class Demo { public static void Main(){ float f1 = 5.0f/0.0f; float f2 = 0.0f/0.0f; Console.WriteLine("Value1 (String representation) = "+f1.ToString()); Console.WriteLine("Hashcode for Value1 = "+f1.GetHashCode()); Console.WriteLine("TypeCode for Value1 = "+f1.GetTypeCode()); Console.WriteLine("Is Value1 value is positive or negative infinity? = "+Single.IsInfinity(f1)); Console.WriteLine("Is Value1 NaN? = "+Single.IsNaN(f1)); Console.WriteLine("Is Value1 a negative infinity? = "+Single.IsNegativeInfinity(f1)); Console.WriteLine("\nValue2 (String representation) = "+f2.ToString()); Console.WriteLine("Hashcode for Value2 = "+f2.GetHashCode()); Console.WriteLine("TypeCode for Value2 = "+f2.GetTypeCode()); Console.WriteLine("Is Value2 value is positive or negative infinity? = "+Single.IsInfinity(f2)); Console.WriteLine("Is Value2 NaN? = "+Single.IsNaN(f2)); Console.WriteLine("Is Value2 a negative infinity? = "+Single.IsNegativeInfinity(f2)); } }
输出结果
这将产生以下输出-
Value1 (String representation) = ∞ Hashcode for Value1 = 2139095040 TypeCode for Value1 = Single Is Value1 value is positive or negative infinity? = True Is Value1 NaN? = False Is Value1 a negative infinity? = False Value2 (String representation) = NaN Hashcode for Value2 = -4194304 TypeCode for Value2 = Single Is Value2 value is positive or negative infinity? = False Is Value2 NaN? = True Is Value2 a negative infinity? = False