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7.3 不安全的代码
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7.3 不安全的代码
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2006-10-13 14:41:00
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<div style='float:left;width:49%'>·<a href='100165344.htm'>6.3 小结</a></div><div style='float:right;width:49%'>·<a href='100165345.htm'>7.1 后台内存管理</a></div><div style='float:left;width:49%'>·<a href='100165346.htm'>7.2 释放未托管的资源</a></div><div style='float:right;width:49%'>·<a href='100165348.htm'>7.3.1 指针(1)</a></div><div style='float:left;width:49%'>·<a href='100165349.htm'>7.3.1 指针(2)</a></div><div style='float:right;width:49%'>·<a href='100165350.htm'>7.3.1 指针(3)</a></div></div>
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<div id="text"> <link href="css.css" rel="stylesheet" type="text/css" /><h3 style="MARGIN-TOP: 11.4pt; MARGIN-LEFT: 0cm; MARGIN-RIGHT: 0cm; FTEL: 11.4pt"><span lang="EN-US">7.3 </span><span style="FONT-FAMILY: 楷体_GB2312">不安全的代码</span></h3>
<p class="MsoNormal" style="LINE-HEIGHT: 17pt"><a ftel="unsafe"><span style="FONT-FAMILY: 宋体">如前面的章节所述，</span><span lang="EN-US">C#</span></a><span style="FONT-FAMILY: 宋体">非常擅长于隐藏基本内存管理，因为它使用了垃圾收集器和引用。但是，有时需要直接访问内存，例如由于性能问题，要在外部</span><span lang="EN-US">(</span><span style="FONT-FAMILY: 宋体">非</span><span lang="EN-US">.NET</span><span style="FONT-FAMILY: 宋体">环境</span><span lang="EN-US">)</span><span style="FONT-FAMILY: 宋体">的</span><span lang="EN-US">DLL</span><span style="FONT-FAMILY: 宋体">中访问一个函数，该函数需要把一个指针当作参数来传递</span><span lang="EN-US">(</span><span style="FONT-FAMILY: 宋体">许多</span><span lang="EN-US">Windows API</span><span style="FONT-FAMILY: 宋体">函数就是这样</span><span lang="EN-US">)</span><span style="FONT-FAMILY: 宋体">。本节将论述</span><span lang="EN-US">C#</span><span style="FONT-FAMILY: 宋体">直接访问内存内容的功能。</span></p></div>
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<div style='float:left;width:49%'>·<a href='100165344.htm'>6.3 小结</a></div><div style='float:right;width:49%'>·<a href='100165345.htm'>7.1 后台内存管理</a></div><div style='float:left;width:49%'>·<a href='100165346.htm'>7.2 释放未托管的资源</a></div><div style='float:right;width:49%'>·<a href='100165348.htm'>7.3.1 指针(1)</a></div><div style='float:left;width:49%'>·<a href='100165349.htm'>7.3.1 指针(2)</a></div><div style='float:right;width:49%'>·<a href='100165350.htm'>7.3.1 指针(3)</a></div></div>
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