学习笔记(22):C#急速入门-练习题1和练习题2实战

立即学习:https://edu.csdn.net/course/play/20589/257730?utm_source=blogtoedu

_______________________________________________________________________________________________________

人生碌碌，竞短论长，却不道荣枯有数，得失难忘。

_______________________________________________________________________________________________________

//练习1：让用户输入三个数字，打印三个数的积

            //Console.WriteLine("请输入三个数：");
       
            //string str1 = Console.ReadLine();
            //double num1 = Convert.ToDouble(str1);
            //string str2 = Console.ReadLine();
            //double num2 = Convert.ToDouble(str2);
            //string str3 = Console.ReadLine();
            //double num3 = Convert.ToDouble(str3);
            //Console.WriteLine("三个数字的积：{0}*{1}*{2}={3}",num1,num2,num3,num1*num2*num3);

            //练习2，计算半径为3的圆的面积和周长并打印出来（pi为3.14）

            float pi = 3.14f;
            Console.WriteLine("面积为3的圆的面积为：{0}，周长为：{1}", pi * 9, pi * 6);
          
            Console.ReadKey();