Mikel
[转载].NET网站自动浏览器分享，解决IIS6应用池回收后第一次访问慢问题 – 事理 – 博客园.
.NET开发的网站，如果不是使用预编译发布，网站会在iis6应用池回收后第一次访问很慢，为了解决这个问题，今天写了一个自动浏览的工具，现在分享给大家，界面如下。
关键部分源码
<span class="com">//手动点击浏览</span><span class="pln"> </span><span class="kwd">private</span><span class="pln"> </span><span class="kwd">void</span><span class="pln"> btnBrowsing_Click</span><span class="pun">(</span><span class="kwd">object</span><span class="pln"> sender</span><span class="pun">,</span><span class="pln"> </span><span class="typ">EventArgs</span><span class="pln"> e</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="pln">btnBrowsing</span><span class="pun">.</span><span class="typ">Enabled</span><span class="pln"> </span><span class="pun">==</span><span class="pln"> </span><span class="kwd">true</span><span class="pln"> </span><span class="pun">&&</span><span class="pln"> chkEnableAutomaticBrowsing</span><span class="pun">.</span><span class="typ">Checked</span><span class="pln"> </span><span class="pun">==</span><span class="pln"> </span><span class="kwd">true</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> btnBrowsing</span><span class="pun">.</span><span class="typ">Enabled</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">false</span><span class="pun">;</span><span class="pln"> </span><span class="typ">Thread</span><span class="pln"> thread </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">Thread</span><span class="pun">(</span><span class="kwd">new</span><span class="pln"> </span><span class="typ">ThreadStart</span><span class="pun">(</span><span class="typ">AutoBrowsing</span><span class="pun">));</span><span class="pln"> thread</span><span class="pun">.</span><span class="typ">IsBackground</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">true</span><span class="pun">;</span><span class="pln"> thread</span><span class="pun">.</span><span class="typ">Start</span><span class="pun">();</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="kwd">else</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="typ">MessageBox</span><span class="pun">.</span><span class="typ">Show</span><span class="pun">(</span><span class="str">"任务正在执行!"</span><span class="pun">);</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="typ">DateTime</span><span class="pln"> tempTime </span><span class="pun">=</span><span class="pln"> </span><span class="typ">DateTime</span><span class="pun">.</span><span class="typ">MinValue</span><span class="pun">;</span><span class="com">//防止一分钟内刷新多次</span><span class="pln"> </span><span class="kwd">private</span><span class="pln"> </span><span class="kwd">void</span><span class="pln"> timer1_Tick</span><span class="pun">(</span><span class="kwd">object</span><span class="pln"> sender</span><span class="pun">,</span><span class="pln"> </span><span class="typ">EventArgs</span><span class="pln"> e</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="typ">DateTime</span><span class="pln"> dt </span><span class="pun">=</span><span class="pln"> </span><span class="typ">DateTime</span><span class="pun">.</span><span class="typ">Now</span><span class="pun">;</span><span class="pln"> </span><span class="com">//转钟时清除一天日志</span><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="pln">dt</span><span class="pun">.</span><span class="typ">ToLongTimeString</span><span class="pun">()</span><span class="pln"> </span><span class="pun">==</span><span class="pln"> </span><span class="str">"0:00:00"</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> rtxtLogs</span><span class="pun">.</span><span class="typ">Text</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">string</span><span class="pun">.</span><span class="typ">Empty</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="typ">TimeSpan</span><span class="pln"> ts </span><span class="pun">=</span><span class="pln"> dt </span><span class="pun">-</span><span class="pln"> tempTime</span><span class="pun">;</span><span class="pln"> </span><span class="com">//1分钟内不得刷新两次</span><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="pln">ts</span><span class="pun">.</span><span class="typ">TotalMinutes</span><span class="pln"> </span><span class="pun">></span><span class="pln"> </span><span class="lit">0</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="com">//到点自动刷新</span><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="pln">lstTime</span><span class="pun">.</span><span class="typ">Items</span><span class="pun">.</span><span class="typ">Contains</span><span class="pun">(</span><span class="pln">dt</span><span class="pun">.</span><span class="typ">ToShortTimeString</span><span class="pun">()))</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> tempTime </span><span class="pun">=</span><span class="pln"> dt</span><span class="pun">.</span><span class="typ">AddMinutes</span><span class="pun">(</span><span class="lit">1</span><span class="pun">);</span><span class="pln"> btnBrowsing_Click</span><span class="pun">(</span><span class="kwd">null</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">null</span><span class="pun">);</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="kwd">private</span><span class="pln"> </span><span class="kwd">void</span><span class="pln"> </span><span class="typ">AutoBrowsing</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">int</span><span class="pln"> itemTotalCount </span><span class="pun">=</span><span class="pln"> </span><span class="lit">0</span><span class="pun">;</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">lvWebsitInfo</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> itemTotalCount </span><span class="pun">=</span><span class="pln"> lvWebsitInfo</span><span class="pun">.</span><span class="typ">Items</span><span class="pun">.</span><span class="typ">Count</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="kwd">for</span><span class="pln"> </span><span class="pun">(</span><span class="kwd">int</span><span class="pln"> i </span><span class="pun">=</span><span class="pln"> </span><span class="lit">0</span><span class="pun">;</span><span class="pln"> i </span><span class="pun"><</span><span class="pln"> itemTotalCount</span><span class="pun">;</span><span class="pln"> i</span><span class="pun">++)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">string</span><span class="pln"> url </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">string</span><span class="pun">.</span><span class="typ">Empty</span><span class="pun">;</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">lvWebsitInfo</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> url </span><span class="pun">=</span><span class="pln"> lvWebsitInfo</span><span class="pun">.</span><span class="typ">Items</span><span class="pun">[</span><span class="pln">i</span><span class="pun">].</span><span class="typ">SubItems</span><span class="pun">[</span><span class="lit">2</span><span class="pun">].</span><span class="typ">Text</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="kwd">int</span><span class="pln"> </span><span class="kwd">retry</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="lit">0</span><span class="pun">;</span><span class="pln"> retryFlag</span><span class="pun">:</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">webBrowser1</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> webBrowser1</span><span class="pun">.</span><span class="typ">Navigate</span><span class="pun">(</span><span class="pln">url</span><span class="pun">);</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="typ">WaitWebPageLoad</span><span class="pun">())</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">rtxtLogs</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> rtxtLogs</span><span class="pun">.</span><span class="typ">AppendText</span><span class="pun">(</span><span class="pln">url </span><span class="pun">+</span><span class="pln"> </span><span class="str">"浏览成功，浏览时间："</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> </span><span class="typ">DateTime</span><span class="pun">.</span><span class="typ">Now</span><span class="pun">.</span><span class="typ">ToLongTimeString</span><span class="pun">()</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> </span><span class="str">"\r\n\r\n"</span><span class="pun">);</span><span class="pln"> rtxtLogs</span><span class="pun">.</span><span class="typ">ScrollToCaret</span><span class="pun">();</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">lvWebsitInfo</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> lvWebsitInfo</span><span class="pun">.</span><span class="typ">Items</span><span class="pun">[</span><span class="pln">i</span><span class="pun">].</span><span class="typ">SubItems</span><span class="pun">[</span><span class="lit">3</span><span class="pun">].</span><span class="typ">Text</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="typ">DateTime</span><span class="pun">.</span><span class="typ">Now</span><span class="pun">.</span><span class="typ">ToString</span><span class="pun">();</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="kwd">else</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">rtxtLogs</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> rtxtLogs</span><span class="pun">.</span><span class="typ">AppendText</span><span class="pun">(</span><span class="pln">url </span><span class="pun">+</span><span class="pln"> </span><span class="str">"浏览失败，即将重试"</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> </span><span class="pun">(</span><span class="kwd">retry</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> </span><span class="lit">1</span><span class="pun">)</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> </span><span class="str">"次\r\n"</span><span class="pun">);</span><span class="pln"> rtxtLogs</span><span class="pun">.</span><span class="typ">ScrollToCaret</span><span class="pun">();</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="kwd">retry</span><span class="pln"> </span><span class="pun"><</span><span class="pln"> </span><span class="lit">2</span><span class="pun">)</span><span class="com">//重试3次</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">retry</span><span class="pun">++;</span><span class="pln"> </span><span class="typ">Thread</span><span class="pun">.</span><span class="typ">Sleep</span><span class="pun">(</span><span class="lit">3000</span><span class="pun">);</span><span class="pln"> </span><span class="kwd">goto</span><span class="pln"> retryFlag</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">rtxtLogs</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> rtxtLogs</span><span class="pun">.</span><span class="typ">AppendText</span><span class="pun">(</span><span class="pln">url </span><span class="pun">+</span><span class="pln"> </span><span class="str">"浏览失败\r\n\r\n"</span><span class="pun">);</span><span class="pln"> rtxtLogs</span><span class="pun">.</span><span class="typ">ScrollToCaret</span><span class="pun">();</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">lvWebsitInfo</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> lvWebsitInfo</span><span class="pun">.</span><span class="typ">Items</span><span class="pun">[</span><span class="pln">i</span><span class="pun">].</span><span class="typ">SubItems</span><span class="pun">[</span><span class="lit">3</span><span class="pun">].</span><span class="typ">Text</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="str">"自动浏览失败"</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">btnBrowsing</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> btnBrowsing</span><span class="pun">.</span><span class="typ">Enabled</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">true</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">webBrowser1</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> webBrowser1</span><span class="pun">.</span><span class="typ">Navigate</span><span class="pun">(</span><span class="str">"about:blank"</span><span class="pun">);</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="com">/// <summary></span><span class="pln"> </span><span class="com">/// 判断webbrowser是否加载一个网页完毕，可判断包括iframe的网页</span><span class="pln"> </span><span class="com">/// </summary></span><span class="pln"> </span><span class="com">/// <returns></returns></span><span class="pln"> </span><span class="kwd">private</span><span class="pln"> </span><span class="kwd">bool</span><span class="pln"> </span><span class="typ">WaitWebPageLoad</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">int</span><span class="pln"> i </span><span class="pun">=</span><span class="pln"> </span><span class="lit">0</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">string</span><span class="pln"> sUrl </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">string</span><span class="pun">.</span><span class="typ">Empty</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">while</span><span class="pln"> </span><span class="pun">(</span><span class="kwd">true</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="typ">Delay</span><span class="pun">(</span><span class="lit">50</span><span class="pun">);</span><span class="pln"> </span><span class="com">//系统延迟50毫秒，够少了吧！</span><span class="pln"> </span><span class="typ">WebBrowserReadyState</span><span class="pln"> webBrowserState </span><span class="pun">=</span><span class="pln"> </span><span class="typ">WebBrowserReadyState</span><span class="pun">.</span><span class="typ">Uninitialized</span><span class="pun">;</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">webBrowser1</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> webBrowserState </span><span class="pun">=</span><span class="pln"> webBrowser1</span><span class="pun">.</span><span class="typ">ReadyState</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="pln">webBrowserState </span><span class="pun">==</span><span class="pln"> </span><span class="typ">WebBrowserReadyState</span><span class="pun">.</span><span class="typ">Complete</span><span class="pun">)</span><span class="pln"> </span><span class="com">//先判断是否发生完成事件。</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">bool</span><span class="pln"> isBusy </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">true</span><span class="pun">;</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">webBrowser1</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> isBusy </span><span class="pun">=</span><span class="pln"> webBrowser1</span><span class="pun">.</span><span class="typ">IsBusy</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(!</span><span class="pln">isBusy</span><span class="pun">)</span><span class="pln"> </span><span class="com">//再判断是浏览器是否繁忙</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> i </span><span class="pun">=</span><span class="pln"> i </span><span class="pun">+</span><span class="pln"> </span><span class="lit">1</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="pln">i </span><span class="pun">==</span><span class="pln"> </span><span class="lit">2</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">SafeInvoke</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">webBrowser1</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">new</span><span class="pln"> </span><span class="typ">CrossThreadCalls</span><span class="pun">.</span><span class="typ">TaskDelegate</span><span class="pun">(</span><span class="kwd">delegate</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> sUrl </span><span class="pun">=</span><span class="pln"> webBrowser1</span><span class="pun">.</span><span class="typ">Url</span><span class="pun">.</span><span class="typ">ToString</span><span class="pun">();</span><span class="pln"> </span><span class="pun">}));</span><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="pln">sUrl</span><span class="pun">.</span><span class="typ">Contains</span><span class="pun">(</span><span class="str">"res"</span><span class="pun">)</span><span class="pln"> </span><span class="pun">||</span><span class="pln"> sUrl</span><span class="pun">.</span><span class="typ">Contains</span><span class="pun">(</span><span class="str">"daohang.114so.cn"</span><span class="pun">))</span><span class="pln"> </span><span class="com">//这是判断没有网络的情况下</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">return</span><span class="pln"> </span><span class="kwd">false</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="kwd">else</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">return</span><span class="pln"> </span><span class="kwd">true</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="kwd">continue</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> i </span><span class="pun">=</span><span class="pln"> </span><span class="lit">0</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="kwd">private</span><span class="pln"> </span><span class="kwd">void</span><span class="pln"> </span><span class="typ">Delay</span><span class="pun">(</span><span class="kwd">int</span><span class="pln"> </span><span class="typ">Millisecond</span><span class="pun">)</span><span class="pln"> </span><span class="com">//延迟系统时间，但系统又能同时能执行其它任务；</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="typ">DateTime</span><span class="pln"> current </span><span class="pun">=</span><span class="pln"> </span><span class="typ">DateTime</span><span class="pun">.</span><span class="typ">Now</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">while</span><span class="pln"> </span><span class="pun">(</span><span class="pln">current</span><span class="pun">.</span><span class="typ">AddMilliseconds</span><span class="pun">(</span><span class="typ">Millisecond</span><span class="pun">)</span><span class="pln"> </span><span class="pun">></span><span class="pln"> </span><span class="typ">DateTime</span><span class="pun">.</span><span class="typ">Now</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="typ">Application</span><span class="pun">.</span><span class="typ">DoEvents</span><span class="pun">();</span><span class="com">//转让控制权 </span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="kwd">return</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}</span> |
