c#格式化字float_C＃中的float关键字

c#格式化字float

C＃float关键字 (C# float keyword)

In C#, float is a keyword which is used to declare a variable that can store a floating point value between the range of ±1.5 x 10⁻⁴⁵ to ±3.4 x 10³⁸. float keyword is an alias of System.Single.

在C＃中， float是一个关键字，用于声明一个变量，该变量可以存储介于±1.5 x 10 ^-45到±3.4 x 10 ³⁸范围内的浮点值。 float关键字是System.Single的别名。

It occupies 4 bytes (32 bits) space in the memory.

它在内存中占用4个字节(32位)的空间。

Note: To represent a float value, we use a suffix f or F with the value.

注意：为了表示浮点值，我们使用后缀f或F。

Syntax:

句法：

float variable_name = value;

C＃代码演示float关键字示例 (C# code to demonstrate example of float keyword)

Here, we are declaring a float variable num, initializing it with the value 12345.6789f and printing its value, type and size of a float type variable.

在这里，我们声明一个float变量num ，使用值12345.6789f对其进行初始化，并打印其值，类型和float类型变量的大小。

using System;
using System.Text;
namespace Test
{
class Program
{
static void Main(string[] args)
{
//variable declaration
float num = 12345.6789f;
//printing value
Console.WriteLine("num: " + num);
//printing type of variable
Console.WriteLine("Type of num: " + num.GetType());
//printing size
Console.WriteLine("Size of a float variable: " + sizeof(float));
//printing minimum & maximum value of float
Console.WriteLine("Min value of float: " + float.MinValue);
Console.WriteLine("Max value of float: " + float.MaxValue);
//hit ENTER to exit
Console.ReadLine();
}
}
}

Output

输出量

num: 12345.68
Type of num: System.Single
Size of a float variable: 4
Min value of float: -3.402823E+38
Max value of float: 3.402823E+38

翻译自: https://www.includehelp.com/dot-net/float-keyword-in-c-sharp.aspx

c#格式化字float