學習筆記(22):C#急速入門-練習題1和練習題2實戰

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

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人生碌碌，競短論長，卻不道榮枯有數，得失難忘。

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        //練習1：讓用戶輸入三個數字，打印三個數的積

            //Console.WriteLine("請輸入三個數：");
       
            //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("三個數字的積：{0}*{1}*{2}={3}",num1,num2,num3,num1*num2*num3);

            //練習2，計算半徑爲3的圓的面積和周長並打印出來（pi爲3.14）

            float pi = 3.14f;
            Console.WriteLine("面積爲3的圓的面積爲：{0}，周長爲：{1}", pi * 9, pi * 6);
          
            Console.ReadKey();