console.writeline
using System;//导入System命名空间
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace consoleAPP1//声明命名空间
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("{0},{1},{2},{1}", "a", "b", "c");
Console.ReadLine();
}
}
}
输出结果:
a,b,c,b