W3School TIY Editor

using System; namespace MyApplication { class Program { static void Main(string[] args) { int myNum = 5; // 整数（整型数） double myDoubleNum = 5.99D; // 浮点数 char myLetter = 'D'; // 字符 bool myBool = true; // 布尔值 string myText = "Hello"; // 字符串 Console.WriteLine(myNum); Console.WriteLine(myDoubleNum); Console.WriteLine(myLetter); Console.WriteLine(myBool); Console.WriteLine(myText); } } }