Csharp-multi-thread.rar_C# Thread_c# thread_进程与线程

<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/622b89053d2fbb0007d0b915/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622b89053d2fbb0007d0b915/bg1.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0">C# <span class="ff2 sc1">多线程基础</span>,<span class="ff2 sc1">仅以此心得献给那些渴望学习多线程的朋友</span></div><div class="t m0 x1 h4 y3 ff2 fs1 fc1 sc0 ls0 ws0">序<span class="ff3">:</span></div><div class="t m0 x1 h4 y4 ff3 fs1 fc1 sc0 ls0 ws0"> <span class="_ _0"></span> <span class="_ _1"></span><span class="ff2">我是自学的<span class="_ _2"> </span></span>C#,<span class="ff2">在看到多线<span class="_ _0"></span>程一章时<span class="_ _0"></span></span>,<span class="_ _0"></span><span class="ff2">郁闷了</span>,<span class="_ _0"></span><span class="ff2">搞不懂</span>,<span class="_ _0"></span><span class="ff2">很难理解吧<span class="_ _0"></span></span>...<span class="_ _0"></span><span class="ff2">自认为有软件天赋<span class="_ _1"></span></span>,<span class="ff2">却没看<span class="_ _0"></span>懂</span>...<span class="ff2">唉<span class="_ _0"></span></span>...</div><div class="t m0 x1 h4 y5 ff2 fs1 fc1 sc0 ls0 ws0">自信心被打击了<span class="ff3">,</span>到网上查了很多的资料<span class="ff3">,</span>包括<span class="_ _3"> </span><span class="ff3">MSDN</span></div><div class="t m0 x1 h4 y6 ff2 fs1 fc1 sc0 ls0 ws0">上也查过资料<span class="ff3">,</span>可惜还是没搞懂多线程<span class="ff3">...</span></div><div class="t m0 x1 h4 y7 ff3 fs1 fc1 sc0 ls0 ws0"> <span class="_ _0"></span> <span class="_ _0"></span><span class="ff2">于是</span>,<span class="ff2">硬着头皮一<span class="_ _0"></span>遍一遍的看多<span class="_ _0"></span>线程那一章<span class="_ _0"></span></span>,<span class="ff2">终于在看<span class="_ _0"></span>完第<span class="_ _3"> </span></span>31<span class="_ _3"> </span><span class="ff2">遍</span>,<span class="ff2">我写出<span class="_ _0"></span>了第一个多线<span class="_ _0"></span>程程序</span>,<span class="_ _0"></span><span class="ff2">还算小有</span></div><div class="t m0 x1 h4 y8 ff2 fs1 fc1 sc0 ls0 ws0">所获<span class="ff3">,</span>鉴于对网上很多资料没办法理解<span class="ff3">(</span>因为<span class="ff3">,</span>很多资料一来就大篇大篇</div><div class="t m0 x1 h4 y9 ff2 fs1 fc1 sc0 ls0 ws0">的代码<span class="ff3">,</span>让人头晕<span class="ff3">,</span>我是这么觉得<span class="ff3">)</span>所以<span class="ff3">,</span>我自己就写了这篇心得体会<span class="ff3">,</span>希望能给大家带来些许帮助<span class="ff3">.</span></div><div class="t m0 x1 h4 ya ff2 fs1 fc1 sc0 ls0 ws0">匆忙之中<span class="ff3">,</span>错误难免<span class="ff3">,</span>欢迎指正<span class="ff3">,</span>共同进步<span class="ff3">.</span></div><div class="t m0 x1 h4 yb ff2 fs1 fc1 sc0 ls0 ws0">正文<span class="ff3">:</span></div><div class="t m0 x1 h4 yc ff3 fs1 fc1 sc0 ls0 ws0"> <span class="_ _0"></span><span class="ff2">首先我要提一点<span class="_ _0"></span></span>,<span class="ff2">关于线程的基础知识<span class="_ _0"></span></span>,<span class="ff2">一个程序<span class="_ _0"></span></span>,<span class="ff2">即一个进程</span>,<span class="ff2">可以有很多个线程<span class="_ _0"></span></span>,<span class="ff2">当然<span class="_ _0"></span></span>,<span class="ff2">至少要有一个线</span></div><div class="t m0 x1 h4 yd ff2 fs1 fc1 sc0 ls0 ws0">程<span class="ff3">,</span>即主线程<span class="ff3">.</span>相信大家都知道多线程的好处吧<span class="ff3">,</span>举个书上的例子</div><div class="t m0 x1 h4 ye ff2 fs1 fc1 sc0 ls0 ws0">吧<span class="ff3">,Windows<span class="_ _3"> </span></span>在复制文件的时候<span class="_ _0"></span><span class="ff3">,</span>有个动画<span class="ff3">,</span>是在复制文件过程中进行的<span class="_ _1"></span><span class="ff3">,</span>也就是一边复制文件<span class="_ _1"></span><span class="ff3">,</span>一边播放动画<span class="_ _0"></span><span class="ff3">,</span></div><div class="t m0 x1 h4 yf ff2 fs1 fc1 sc0 ls0 ws0">这个就是很简单的多线程<span class="ff3">,</span>如果没有动画<span class="ff3">,</span>复制一个大文件的时候<span class="ff3">,</span>我们知</div><div class="t m0 x1 h4 y10 ff2 fs1 fc1 sc0 ls0 ws0">道计算<span class="_ _0"></span>机是死机<span class="_ _0"></span>了<span class="ff3">,<span class="_ _0"></span></span>还是仍<span class="_ _0"></span>然在复<span class="_ _0"></span>制呢<span class="ff3">???<span class="_ _0"></span></span>多线<span class="_ _0"></span>程就很<span class="_ _0"></span>好的解决<span class="_ _0"></span>了这个<span class="_ _0"></span>问题<span class="_ _0"></span><span class="ff3">.</span>懂了<span class="_ _0"></span>吧<span class="ff3">,</span>恩<span class="_ _0"></span><span class="ff3">,</span>很好<span class="_ _0"></span><span class="ff3">!!</span>那<span class="_ _0"></span>么<span class="ff3">,</span>我<span class="_ _0"></span>们就开</div><div class="t m0 x1 h4 y11 ff2 fs1 fc1 sc0 ls0 ws0">始吧<span class="ff3">!</span></div><div class="t m0 x1 h4 y12 ff3 fs1 fc1 sc0 ls0 ws0"> <span class="ff2">首先</span>,<span class="ff2">我们写个简单的单线程程序</span>,<span class="ff2">也就是只有程序自己创建的那个主线程</span>,<span class="ff2">没有使用多线程</span>.</div><div class="t m0 x1 h4 y13 ff2 fs1 fc1 sc0 ls0 ws0">创建<span class="_ _0"></span>一个<span class="_ _0"></span>新工程<span class="_ _1"></span><span class="ff3">,<span class="_ _0"></span></span>向窗<span class="_ _0"></span>口添<span class="_ _0"></span>加一<span class="_ _0"></span>个<span class="_ _2"> </span><span class="ff3">label<span class="_ _3"> </span></span>命名<span class="_ _0"></span>为<span class="_ _2"> </span><span class="ff3">label1;</span>我们<span class="_ _0"></span>要让<span class="_ _0"></span>程序<span class="_ _0"></span>运行<span class="_ _0"></span>时<span class="_ _2"> </span><span class="ff3">label1<span class="_ _3"> </span></span>就<span class="_ _0"></span>显示<span class="_ _0"></span>一个<span class="_ _0"></span>数字<span class="_ _1"></span><span class="ff3">,<span class="_ _0"></span></span>假设<span class="_ _0"></span>为</div><div class="t m0 x1 h4 y14 ff3 fs1 fc1 sc0 ls0 ws0">100;<span class="ff2">通常我们会直接在窗口加载事件中写<span class="_ _3"> </span></span>label1.T<span class="_ _4"></span>ext = "100";<span class="ff2">这样</span>,<span class="ff2">运行</span></div><div class="t m0 x1 h4 y15 ff3 fs1 fc1 sc0 ls0 ws0">,label1<span class="_ _3"> </span><span class="ff2">果然显示了<span class="_ _3"> </span></span>100;</div><div class="t m0 x1 h4 y16 ff2 fs1 fc1 sc0 ls0 ws0">代码如下<span class="ff3">:(</span>例<span class="_ _3"> </span><span class="ff3">1)</span></div><div class="t m0 x1 h5 y17 ff1 fs1 fc2 sc0 ls0 ws0">using<span class="fc1"> System;</span></div><div class="t m0 x1 h5 y18 ff1 fs1 fc2 sc0 ls0 ws0">using<span class="fc1"> System.Windows.Forms;</span></div><div class="t m0 x1 h5 y19 ff1 fs1 fc2 sc0 ls0 ws0">namespace<span class="fc1"> ThreadT<span class="_ _5"></span>est</span></div><div class="t m0 x1 h5 y1a ff1 fs1 fc1 sc0 ls0 ws0">{</div><div class="t m0 x1 h5 y1b ff1 fs1 fc1 sc0 ls0 ws0"> <span class="fc2">public partial class</span> <span class="fc3">Form1 : Form</span></div><div class="t m0 x1 h5 y1c ff1 fs1 fc1 sc0 ls0 ws0"> {</div><div class="t m0 x1 h5 y1d ff1 fs1 fc1 sc0 ls0 ws0"> <span class="fc2">public</span> Form1()</div><div class="t m0 x1 h5 y1e ff1 fs1 fc1 sc0 ls0 ws0"> {</div><div class="t m0 x1 h5 y1f ff1 fs1 fc1 sc0 ls0 ws0"> InitializeComponent();</div><div class="t m0 x1 h5 y20 ff1 fs1 fc1 sc0 ls0 ws0"> }</div><div class="t m0 x1 h5 y21 ff1 fs1 fc1 sc0 ls0 ws0"> <span class="fc2">private void</span> Form1_Load(<span class="fc2">object<span class="_ _0"></span></span> sender<span class="_ _5"></span>, <span class="fc3">EventArgs</span> e)</div><div class="t m0 x1 h5 y22 ff1 fs1 fc1 sc0 ls0 ws0"> {</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div> </body> </html>

<div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622b89053d2fbb0007d0b915/bg2.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h5 y23 ff1 fs1 fc1 sc0 ls0 ws0"> label1.T<span class="_ _4"></span>e<span class="_ _0"></span>xt = "100";</div><div class="t m0 x1 h5 y24 ff1 fs1 fc1 sc0 ls0 ws0"> }</div><div class="t m0 x1 h5 y25 ff1 fs1 fc1 sc0 ls0 ws0"> }</div><div class="t m0 x1 h5 y26 ff1 fs1 fc1 sc0 ls0 ws0">}</div><div class="t m0 x1 h4 y27 ff2 fs1 fc1 sc0 ls0 ws0">很简单吧<span class="ff3">,</span>看懂了吗<span class="ff3">??</span></div><div class="t m0 x1 h4 y28 ff2 fs1 fc1 sc0 ls0 ws0">什么<span class="ff3">,<span class="_ _0"></span></span>没有<span class="ff3">,<span class="_ _0"></span></span>啊<span class="ff3">~~~<span class="_ _0"></span></span>神啊<span class="ff3">~~~<span class="_ _0"></span></span>救救我<span class="_ _0"></span>吧<span class="ff3">,<span class="_ _0"></span></span>那请你在<span class="_ _0"></span>翻书<span class="_ _0"></span><span class="ff3">,</span>把最最<span class="_ _0"></span>最最最<span class="_ _0"></span>基础的<span class="_ _0"></span>书翻出<span class="_ _0"></span>来看看里<span class="_ _0"></span>面的最<span class="_ _0"></span>最最最<span class="_ _0"></span>最简</div><div class="t m0 x1 h4 y29 ff2 fs1 fc1 sc0 ls0 ws0">单例子<span class="ff3">(</span>以后不要说我认识你<span class="ff3">)</span></div><div class="t m0 x1 h4 y2a ff2 fs1 fc1 sc0 ls0 ws0">好了，看懂的朋友继续往下看：</div><div class="t m0 x1 h4 y2b ff2 fs1 fc1 sc0 ls0 ws0">我们现在要将程序稍稍改动一下，添加一个<span class="_ _2"> </span><span class="ff3">Button,<span class="_ _0"></span></span>命名为<span class="_ _3"> </span><span class="ff3">button1,</span>我们要在按下<span class="_ _2"> </span><span class="ff3">button1<span class="_ _3"> </span></span>后，将<span class="_ _3"> </span><span class="ff3">lable1<span class="_ _3"> </span></span>的</div><div class="t m0 x1 h4 y2c ff3 fs1 fc1 sc0 ls0 ws0">text<span class="_ _3"> </span><span class="ff2">从<span class="_ _3"> </span></span>0<span class="_ _3"> </span><span class="ff2">显示到<span class="_ _3"> </span></span>100,</div><div class="t m0 x1 h4 y2d ff2 fs1 fc1 sc0 ls0 ws0">那么，我们需要添加<span class="_ _3"> </span><span class="ff3">button1<span class="_ _3"> </span></span>的<span class="_ _3"> </span><span class="ff3">Click<span class="_ _3"> </span></span>事件<span class="ff3">,</span>在<span class="_ _3"> </span><span class="ff3">click<span class="_ _3"> </span></span>事件内写入循环显示<span class="_ _3"> </span><span class="ff3">0<span class="_ _3"> </span></span>到<span class="_ _3"> </span><span class="ff3">100.</span></div><div class="t m0 x1 h4 y2e ff2 fs1 fc1 sc0 ls0 ws0">代码如下<span class="ff3">:(</span>例<span class="_ _3"> </span><span class="ff3">2)</span></div><div class="t m0 x1 h5 y2f ff1 fs1 fc2 sc0 ls0 ws0">using<span class="fc1"> System;</span></div><div class="t m0 x1 h5 y30 ff1 fs1 fc2 sc0 ls0 ws0">using<span class="fc1"> System.Windows.Forms;</span></div><div class="t m0 x1 h5 y31 ff1 fs1 fc2 sc0 ls0 ws0">namespace<span class="fc1"> ThreadT<span class="_ _5"></span>est</span></div><div class="t m0 x1 h5 y32 ff1 fs1 fc1 sc0 ls0 ws0">{</div><div class="t m0 x1 h5 y33 ff1 fs1 fc1 sc0 ls0 ws0"> <span class="fc2">public partial class</span> <span class="fc3">Form1 : Form</span></div><div class="t m0 x1 h5 y34 ff1 fs1 fc1 sc0 ls0 ws0"> {</div><div class="t m0 x1 h5 y35 ff1 fs1 fc1 sc0 ls0 ws0"> <span class="fc2">public</span> Form1()</div><div class="t m0 x1 h5 y36 ff1 fs1 fc1 sc0 ls0 ws0"> {</div><div class="t m0 x1 h5 y37 ff1 fs1 fc1 sc0 ls0 ws0"> InitializeComponent();</div><div class="t m0 x1 h5 y38 ff1 fs1 fc1 sc0 ls0 ws0"> }</div><div class="t m0 x1 h5 y39 ff1 fs1 fc1 sc0 ls0 ws0"> <span class="fc2">private void</span> Form1_Load(<span class="fc2">object<span class="_ _0"></span></span> sender<span class="_ _5"></span>, <span class="fc3">EventArgs</span> e)</div><div class="t m0 x1 h5 y3a ff1 fs1 fc1 sc0 ls0 ws0"> {</div><div class="t m0 x1 h5 y3b ff1 fs1 fc1 sc0 ls0 ws0"> label1.T<span class="_ _4"></span>e<span class="_ _0"></span>xt = "0";</div><div class="t m0 x1 h5 y3c ff1 fs1 fc1 sc0 ls0 ws0"> }</div><div class="t m0 x1 h5 y3d ff1 fs1 fc1 sc0 ls0 ws0"> <span class="fc2">private void</span> button1_Click(<span class="fc2">object<span class="_ _0"></span></span> sender<span class="_ _5"></span>, <span class="fc3">EventArgs</span> e)</div><div class="t m0 x1 h5 y3e ff1 fs1 fc1 sc0 ls0 ws0"> {</div><div class="t m0 x1 h5 y3f ff1 fs1 fc1 sc0 ls0 ws0"> <span class="fc2">for</span>(<span class="fc2">int</span> i=0;i<101;i++)</div><div class="t m0 x1 h5 y40 ff1 fs1 fc1 sc0 ls0 ws0"> {</div><div class="t m0 x1 h5 y41 ff1 fs1 fc1 sc0 ls0 ws0"> label1.T<span class="_ _4"></span>e<span class="_ _0"></span>xt = i.T<span class="_ _5"></span>oString();</div><div class="t m0 x1 h5 y42 ff1 fs1 fc1 sc0 ls0 ws0"> }</div><div class="t m0 x1 h5 y43 ff1 fs1 fc1 sc0 ls0 ws0"> }</div><div class="t m0 x1 h5 y44 ff1 fs1 fc1 sc0 ls0 ws0"> }</div><div class="t m0 x1 h5 y45 ff1 fs1 fc1 sc0 ls0 ws0">}</div><div class="t m0 x1 h4 y46 ff2 fs1 fc1 sc0 ls0 ws0">运行一下看看<span class="ff3">,</span>按一下<span class="_ _3"> </span><span class="ff3">button1</span>，结果是我们一下就看到了<span class="_ _3"> </span><span class="ff3">100</span>，并没有看到<span class="_ _3"> </span><span class="ff3">0~100<span class="_ _3"> </span></span>的过程，为什么呢？</div><div class="t m0 x1 h4 y47 ff2 fs1 fc1 sc0 ls0 ws0">呵呵<span class="_ _0"></span>，因<span class="_ _0"></span>为你的<span class="_ _0"></span>处理<span class="_ _0"></span>器速<span class="_ _0"></span>度太<span class="_ _0"></span>快了<span class="_ _0"></span>，就<span class="_ _0"></span>只能<span class="_ _0"></span>看到<span class="_ _0"></span>最后<span class="_ _0"></span>的结<span class="_ _0"></span>果，<span class="_ _0"></span>那么，<span class="_ _0"></span>怎样<span class="_ _0"></span>才能<span class="_ _0"></span>看到<span class="_ _0"></span>中间<span class="_ _0"></span>过程呢<span class="_ _0"></span>？<span class="_ _6"> </span><span class="ff3">(</span>等<span class="_ _0"></span>一下</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div>