运算符

关系运算符

>

<

>=

<=

==

!=

关系运算符是用来描述两个事物之间的关系

 

bool类型

在c#中我们用bool类型来描述对或者错

Bool类型的值只有两个 一个true 一个false

 

using System;

namespace bool类型
{
    class Program
    {
        static void Main(string[] args)
        {
            bool a = 1500 >= 1;
            bool b = 12 > 12000;

            Console.WriteLine(a);
            Console.WriteLine(b);
            Console.ReadKey();
              
        }
    }
}

 

 

 

 

 

逻辑运算符

 

&& 逻辑与

 

||逻辑或

 

！逻辑非

 

由逻辑运算符连接的表达式叫做逻辑表达式

 

逻辑运算符两边放的一般都是关系表达式或者bool类型的值

 

 

复合赋值运算符

 

int number=10;

 

+=

 

number+=20;

 

number=number+20

 

-=

 

*=

 

/=

 

%=

 

using System;

namespace 赋值运算符
{
    class Program
    {
        static void Main(string[] args)
        {
            int n=100;
            n = 1000;//给变量重新赋值，一旦给变量重新赋值，那么老值就不存在了，取而代之的是新值
            Console.WriteLine(n);
            Console.ReadKey();
        }
    }
}

 

两道作业题

using System;

namespace 两道作业题
{
    class Program
    {
        static void Main(string[] args)
        {
            //一共47天，用计算显示出有几周零几天
            //int days = 47;
            //int weeks = days / 7;
            //int day = days % 7;
            //Console.WriteLine("{0}天是{1}周零{2}天",days,weeks,day);
            //Console.ReadKey();


            //编程实现107653秒是几天几小时几分几秒？
            //int sum = 107653;
            //int oneDay = 60 * 60 * 24;
            //int oneHour = 60 * 60;
            //int oneMin = 60;
            //int day = sum / oneDay ;
            //int hour = (sum - day * oneDay ) / oneHour ;
            //int min = (sum - day * oneDay - hour * oneHour) / oneMin;
            //int sec = sum - day * oneDay - hour * oneHour - min * oneMin ;
            //Console.WriteLine("{0}秒是{1}天{2}小时{3}分钟{4}秒", sum, day, hour, min, sec);
            //Console.ReadKey();
            int seconds = 107653;
            int days = seconds / 86400;
            int secs = seconds % 86400;
            int hours = secs / 3600;
            secs = secs % 3600;
            int min = secs / 60;
            secs = secs % 60;
            Console.WriteLine("{0}天，{1}时，{2}分，{3}秒", days, hours, min, secs);
            Console.ReadKey();
        }
    }
}

 

标签：60,Console,int,运算符,secs,day
来源： https://www.cnblogs.com/May1184958246/p/14858288.html