.net (a) entry

.net / dotnet: .Net Framework frame generally refers to a technique internet.

C #: a programming language, you can develop applications based on .net platform

Java is a platform-even a programming language.

.Net Framework is an integral part of .Net platform, it provides a stable operating environment to ensure that we are able to work properly on a variety of applications .Net platform.

.Net platform as the kitchen, .Net Framework is a kitchen materials and tools.

What do .Net

Desktop application, called Winform application
Internet applications, ASP.NET
Mobile development, wp8
Unity3D game development or virtual reality

Development Tools: VS2017

New Project to create a console application

Open the project

The solution is to include the project, you can then create a solution in this project: Direct Right Solution, select Add, select New Project.

Program.cs, cs suffix to file a class file for the default content:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HelloWorld
{
    class Program
    {
        static void Main(string[] args)
        {

        }
    }
}

component:

Namespace references

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

Project or namespace name, enclose the class

Which contains classes, class Main function (method) is the entry program

namespace 项目名或命名空间
{
    class 类名
    {
        static void Main(string[] args)
        {

        }
    }
}

打开解决方案文件夹

.sln：解决方案文件，里面包含着整个解决方案的信息，可以双击运行。

打开 HelloWorld文件夹

.csproj：项目文件，里面包含着这个项目的信息，可以双击运行。

写两行代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HelloWorld
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
            Console.ReadKey();
        }
    }
}

F5运行程序

Console.ReadKey() 的作用：暂停当前程序，等待用户按下任意键继续，按下的任意键将显示在控制台中。没有该句，程序运行一闪而过，控制台立刻关闭。

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