参考书目:C#6.0学习笔记——从第一行C#代码到第一个项目设计(作者周家安)
第二章:C#基本语法
代码如下:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static System.Console;
namespace Example_1
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("编程是一件快乐的事!");
WriteLine(" 使用了命名空间");
Console.Read();
}
}
/// <summary>
/// 测试类,作为启动项
/// </summary>
class Test2
{
/// <summary>
///
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
///
Console.WriteLine("入口点2");
int data=default(int);
Console.WriteLine("变量的默认值为:{0}.", data);
data = 100;
Console.WriteLine("赋值后的变量值为:{0}.", data);
const int NUMBER = 9000;
Console.WriteLine("const int NUMBER值为:{0}.", NUMBER);
// NUMBER = 100;
int a = 20;
string str = a > 10 ? "该数大于10" : "该数小于10";
Console.WriteLine("str为:{0}.", str);
int x = 70;
Console.WriteLine(++x);
int y = 60;
Console.WriteLine(y++);
int[] numbers = new int[] { 2, 3, 4, 5, 6, 7, 8, 9 };
for(int i =0; i< numbers.Length; i++)
{
Console.Write(numbers[i]); //不换行输出
Console.Write(" ");
}
Console.WriteLine(""); //换行输出
foreach(int n in numbers)
{
Console.Write("{0} ", n);
}
string s = "";
while(s.Length < 15)
{
s = s + "*";
Console.WriteLine(s);
}
Console.Read();
}
}
}
运行结果如下: