C#实验二
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApp2 { class Program { enum MyEn { a = 101, b, c = 207, d, e, f, g }; static void Main(string[] args) { //实验一 //double r; //Console.WriteLine("请输入圆的半径"); //r = double.Parse(Console.ReadLine()); //Console.WriteLine("圆的面积为" + Math.PI * r * r); //Console.WriteLine("圆的周长为" + 2 * Math.PI * r); // //实验二 //int x = (int)MyEn.e; //Console.WriteLine("第五个值 = {0}", x); //Console.Read(); // //实验三 //int m = 3; //int n = 5; //Console.WriteLine("第一组:"); //bool first = ((m == m++) && (n == n--)); //Console.WriteLine("first = {0} m = {1} n = {2}", first, m, n); //m = 3; //n = 5; //Console.WriteLine("第二组:"); //bool second = ((m == ++m) || (n == n--)); //Console.WriteLine("second = {0} m = {1} n = {2}", second, m, n); // //实验四 //int a = 1, b = 2, c = 3; //Console.WriteLine(((((c++ + --a) * b) != 2) && true)); } } }
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