55 lines
1.8 KiB
C#
55 lines
1.8 KiB
C#
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using System;
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namespace Lesson10
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{
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class program
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{
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static void Main(string[] args)
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{
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#region 年龄
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int myAge = 18;
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myAge += 10;
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Console.WriteLine("十年后我的年龄是：" + myAge);
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#endregion
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#region 圆的面积
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const float PI = 3.1415926f;
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int radius = 5;
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float area = PI * radius * radius;
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float circumference = 2f * PI * radius;
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Console.WriteLine("半径为" + radius + "的圆的面积是：" + area + "周长是:" + circumference);
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#endregion
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#region 计算成绩
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int score1 = 80;
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int score2 = 90;
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int score3 = 92;
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int totalScore = score1 + score2 + score3;
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float avgScore = totalScore / 3.0f;
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Console.WriteLine("你的总成绩为:" + totalScore);
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Console.WriteLine("你的平均分为:" + avgScore);
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#endregion
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#region 交换变量值
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int a = 99;
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int b = 87;
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int temp;
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temp = a;
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a = b;
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b = temp;
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Console.WriteLine($"交换后A的值为:{a}B的值为:{b}");
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#endregion
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#region 时间转换
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int second = 987652;
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int hour, minute, day;
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day = second / 86400; // 1天 = 86400秒
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hour = (second - (day * 86400)) / 3600; // 1小时 = 3600秒
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minute = (second - (day * 86400 + hour * 3600)) / 60; // 1分钟 = 60秒
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second = second - (day * 86400 + hour * 3600 + minute * 60);
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Console.WriteLine($"转换后的时间为{day}天{hour}小时{minute}分钟{second}秒");
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#endregion
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}
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}
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}
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