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<td height="25" background="/templets/img/31bg3.gif" align="left" class="guidet"> → 当前位置:<a href='http://www.bianceng.cn/'>首页</a>→<a href='/Programming/index.htm'>编程语言</a>→<a href='/Programming/cs/index.htm'>C#</a>→<a href='/Programming/cs/jc/index.htm'>C#教程</a>→正文</td>
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<td align="center" valign="middle" class="til"><h3> 我眼中的C# </h3>
发布时间:2009-04-17 来源:编程入门网 作者:L小凤<br />
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</table><p> 其实我自己接触C#的时间也不久,以前学的是C和C++;大家都知道C语言是从B语言演化而来的,C语言是面向过程的编程语言。C++是从C语言扩展而来的,而C #可以说是C++++,是在C++基础上进化而来的。C#是纯面向对象( Object-Oriented programming, OOP)的编程语言,它去除了C++中的面向过程(Process-oriented programming,OOP)。</p>
<p> 如果以前学过编程语言的话,特别是面向对象的,学习C#不怎么难;但是如果是开始学也不要担心,C#是比较容易学的,它不像C或者C++中里的那么复杂的指针等麻烦;例如在编程过程中,用不同的颜色来表示类,方法,提示已定义了的变量和方法等,这样会比较省事。同时C#在网络数据库应用开发方面都可以与JAVA一比高下,做什么事情都要有信心,要持之以恒,且不能半途而废。</p>
<p> 工欲善其事,必先利其器。良好的编程工具是学习编程的好助手。编程语言都有自己的开发环境, C#的开发工具具体有哪些我不说了,可以在网上找,目前比较流行的有visual studio2003、2005、2008等集成开发工具;最新的visual studio2008安装后比较大,同时对系统的要求比较高: CPU1.5GHZ以上,内存应该1GB,这样在运行visual studio2008比较流畅,并且不要配置系统环境变量。如果系统比较差,可以安装C#开发工具<strong>EasyCSharp</strong>。</p>
<p> 下面演示visual studio2005的安装</p>
<p> 先下载visual studio2005,大概有2.5G左右,用虚拟光驱打开镜像文件后就弹出如下的图像:</p>
<p><img height="340" alt="" width="490" border="0" src="/upimg/userup/0904/1G15231ZR.jpg" /></p>
<p> 点击“更改或移除visual studio2005”;进入安装界面,直接点下一步直到安装结束,整个过程大概持续50分钟左右。</p>
<p><img height="342" alt="" width="553" border="0" src="/upimg/userup/0904/1G152542223.jpg" /></p>
<p> 安装界面</p>
<p> 安装结束后,点击桌面上的快捷方式打开visual studio2005,就可以进行程序开发了。下面看下开发第一个C#控制台应用程序。</p>
<p><img height="297" alt="" width="550" border="0" src="/upimg/userup/0904/1G1531415H.jpg" /></p>
<p><span style="FONT-SIZE: 12pt; FONT-FAMILY: '宋体'"><font face="宋体">第一个C#控制台应用程序;</font></span></p>
<p><span style="FONT-SIZE: 9pt; COLOR: rgb(0,0,255); FONT-FAMILY: '新宋体'">using</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> System;</span></p>
<p><span style="FONT-SIZE: 9pt; COLOR: rgb(0,0,255); FONT-FAMILY: '新宋体'">using</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> System.Collections.Generic;</span></p>
<p><span style="FONT-SIZE: 9pt; COLOR: rgb(0,0,255); FONT-FAMILY: '新宋体'">using</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> System.Text;</span></p>
<p><span style="FONT-SIZE: 9pt; COLOR: rgb(0,128,0); FONT-FAMILY: '新宋体'">//</span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,128,0); FONT-FAMILY: '新宋体'">命名空间</span></p>
<p><span style="FONT-SIZE: 9pt; COLOR: rgb(0,0,255); FONT-FAMILY: '新宋体'">namespace</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> hello</span></p>
<p><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'">{</span></p>
<p><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> </span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,0,255); FONT-FAMILY: '新宋体'">class</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> </span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,128,128); FONT-FAMILY: '新宋体'">Program</span></p>
<p><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> {</span></p>
<p><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> </span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,0,255); FONT-FAMILY: '新宋体'">static</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> </span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,0,255); FONT-FAMILY: '新宋体'">void</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> Main(</span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,0,255); FONT-FAMILY: '新宋体'">string</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'">[] args)</span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,128,0); FONT-FAMILY: '新宋体'">//</span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,128,0); FONT-FAMILY: '新宋体'">主函数,</span></p>
<p><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> {</span></p>
<p><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> </span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,128,128); FONT-FAMILY: '新宋体'">Console</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'">.WriteLine(</span><span style="FONT-SIZE: 9pt; COLOR: rgb(128,0,0); FONT-FAMILY: '新宋体'">"</span><span style="FONT-SIZE: 9pt; COLOR: rgb(128,0,0); FONT-FAMILY: '新宋体'">开始</span><span style="FONT-SIZE: 9pt; COLOR: rgb(128,0,0); FONT-FAMILY: '新宋体'">C#</span><span style="FONT-SIZE: 9pt; COLOR: rgb(128,0,0); FONT-FAMILY: '新宋体'">编程之路</span><span style="FONT-SIZE: 9pt; COLOR: rgb(128,0,0); FONT-FAMILY: '新宋体'">"</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'">);</span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,128,0); FONT-FAMILY: '新宋体'">//</span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,128,0); FONT-FAMILY: '新宋体'">输出一段文字</span></p>
<p><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> </span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,128,128); FONT-FAMILY: '新宋体'">Console</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'">.ReadKey();</span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,128,0); FONT-FAMILY: '新宋体'">//</span><span style="FONT-SIZE: 9pt; COLOR: rgb(0,128,0); FONT-FAMILY: '新宋体'">保持控制台显示输出结果,直到按下任何键</span></p>
<p><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> }</span></p>
<p><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'"> }</span></p>
<p><span style="FONT-SIZE: 9pt; FONT-FAMILY: '新宋体'">}</span></p>
<p> 下面是程序运行的结果:</p>
<p><img height="293" alt="" width="550" border="0" src="/upimg/userup/0904/1G153391436.jpg" /></p>
<p> 大家可以跟着学做第一个C#程序了。</p>
<p> 本文为编程入门网.NET专栏作家“L小凤”原创,转载请保留这句话。</p>
<p> 本文已经制作成pdf文件,下载地址:</p>
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