c# bool?和bool

C＃bool关键字 (C# bool keyword)

In C#, bool is a keyword which is used to declare a variable that can store Boolean values true or false. bool keyword is an alias of System.Boolean.

在C＃中， bool是一个关键字，用于声明可以存储布尔值true或false的变量。 bool关键字是System.Boolean的别名。

It occupies 1 byte (8 bits) in the memory.

它在内存中占用1个字节(8位)。

Syntax:

句法：

    bool variable_name = value;

There are only two possible values that can be assigned to a bool variable 1) true or 2) false

只能将两个可能的值分配给布尔变量1) true或2) false

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

Here, we are declaring a bool variable answer, initializing it with the value true and printing its value, type, and size of a bool type variable.

在这里，我们声明一个布尔变量答案 ，将其初始化为值true，并打印其值，类型和布尔类型变量的大小。

using System;
using System.Text;

namespace Test
{
    class Program
    {
        static void Main(string[] args)
        {
            //bool variable declaration
            bool answer = true;

            //printing value
            Console.WriteLine("answer: " + answer);
            //printing type of variable
            Console.WriteLine("Type of answer: " + answer.GetType());
            //printing size of a bool 
            Console.WriteLine("Size of a bool variable: " + sizeof(bool));

            //hit ENTER to exit
            Console.ReadLine();
        }
    }
}

Output

输出量

answer: True
Type of answer: System.Boolean
Size of a bool variable: 1

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

c# bool?和bool