100165715.htm
来自「C#高级编程(第三版),顶死你们。。 。up」· HTM 代码 · 共 95 行
HTM
95 行
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>
28.1.5 数据类型
</title></head>
<body>
<div class="area">
<div class="col1">
<div class="lineBlue">
</div>
<!-- title -->
<div class="arcTitle">
<h1>
<a href="../16">
C#高级编程（第3版）【全文连载】
</a>
</h1>
<div style="text-align: center; font-size: 15px">
<a href="100165715.htm">
28.1.5 数据类型
</a>
</div>
<div style="text-align: center; font-size: 15px">
<a class="url" href="../../default.htm">http://book.csdn.net/</a>
2006-10-13 14:41:00
</div>
<div style="margin: 0px auto; width: 700px; border: solid 1px #0b5f98;">
<div style="float: left; width: 16px; background-color: #0b5f98; color: White; padding: 1px;">
图书导读
</div>
<div style="float: right; width: 670px; text-align: left; line-height: 16pt; padding-left: 2px">
<!--导读-->
<h1 id="divCurrentNode" style="color: #b83507; width: 100%; text-align: left; font-size: 12px; padding-left: 2px">当前章节:<a href='100165715.htm'><font color='red'>28.1.5 数据类型</font></a></h1>
<div id="divRelateNode" style="padding-left: 2px">
<div style='float:left;width:49%'>·<a href='100165712.htm'>28.1.2 释放内存</a></div><div style='float:right;width:49%'>·<a href='100165713.htm'>28.1.3 接口</a></div><div style='float:left;width:49%'>·<a href='100165714.htm'>28.1.4 方法绑定</a></div><div style='float:right;width:49%'>·<a href='100165716.htm'>28.1.6 注册</a></div><div style='float:left;width:49%'>·<a href='100165717.htm'>28.1.7 线程</a></div><div style='float:right;width:49%'>·<a href='100165718.htm'>28.1.8 错误处理</a></div></div>
</div>
</div>
</div>
<!-- main -->
<div id="main">
<div id="text"> <link href="css.css" rel="stylesheet" type="text/css" /><h3 style='margin-top:8.15pt;margin-right:0cm;FTEL:8.15pt;margin-left:
0cm'><span lang=EN-US>28.1.5 </span><span style='font-family:黑体'>数据类型</span></h3>
<p class=MsoNormal><span style='font-family:宋体'>对于双重接口和分派接口，</span><span
lang=EN-US>COM</span><span style='font-family:宋体'>能使用的数据类型被局限于自动兼容的数据类型列表。接口</span><span
lang=EN-US>IDispatch</span><span style='font-family:宋体'>的</span><span
lang=EN-US>Invoke()</span><span style='font-family:宋体'>方法接收</span><span
lang=EN-US>VARIANT</span><span style='font-family:宋体'>数据类型的数组。</span><span
lang=EN-US>VARIANT</span><span style='font-family:宋体'>是许多不同数据类型的组合，例如</span><span
lang=EN-US>BYTE</span><span style='font-family:宋体'>、</span><span lang=EN-US>SHORT</span><span
style='font-family:宋体'>、</span><span lang=EN-US>LONG</span><span
style='font-family:宋体'>、</span><span lang=EN-US>FLOAT</span><span
style='font-family:宋体'>、</span><span lang=EN-US>DOUBLE</span><span
style='font-family:宋体'>、</span><span lang=EN-US>BSTR</span><span
style='font-family:宋体'>、</span><span lang=EN-US>IUnknown*</span><span
style='font-family:宋体'>、</span><span lang=EN-US>IDispatch*</span><span
style='font-family:宋体'>等。</span><span lang=EN-US>VARIANT</span><span
style='font-family:宋体'>在</span><span lang=EN-US>Visual Basic</span><span
style='font-family:宋体'>中很容易使用，但在</span><span lang=EN-US>C++</span><span
style='font-family:宋体'>中使用时就比较复杂了。在</span><span lang=EN-US>.NET</span><span
style='font-family:宋体'>中，使用</span><span lang=EN-US>Object</span><span
style='font-family:宋体'>类代替了</span><span lang=EN-US>VARIANT</span><span
style='font-family:宋体'>。</span></p>
<p class=MsoNormal><span style='font-family:宋体'>在定制接口中，</span><span lang=EN-US>C++</span><span
style='font-family:宋体'>能使用的所有数据类型也可用于</span><span lang=EN-US>COM</span><span
style='font-family:宋体'>。但是，使用这个组件的客户程序只能采用某些语言来编程。</span></p>
</div>
<!-- page -->
<div class="page" style="text-align: center">
<a href="100165714.htm">上一页</a> <a href="index.html">首页</a> <a href="100165716.htm">下一页</a>
</div>
<div style="margin: 0px auto; width: 700px; border: solid 1px #0b5f98;">
<div style="float: left; width: 16px; background-color: #0b5f98; color: White; padding: 1px;">
图书导读
</div>
<div style="float: right; width: 670px; text-align: left; line-height: 16pt; padding-left: 2px">
<!--导读-->
<h1 id="divCurrentNode2" style="color: #b83507; width: 100%; text-align: left; font-size: 12px; padding-left: 2px">当前章节:<a href='100165715.htm'><font color='red'>28.1.5 数据类型</font></a></h1>
<div id="divRealteNod2" style="padding-left: 2px">
<div style='float:left;width:49%'>·<a href='100165712.htm'>28.1.2 释放内存</a></div><div style='float:right;width:49%'>·<a href='100165713.htm'>28.1.3 接口</a></div><div style='float:left;width:49%'>·<a href='100165714.htm'>28.1.4 方法绑定</a></div><div style='float:right;width:49%'>·<a href='100165716.htm'>28.1.6 注册</a></div><div style='float:left;width:49%'>·<a href='100165717.htm'>28.1.7 线程</a></div><div style='float:right;width:49%'>·<a href='100165718.htm'>28.1.8 错误处理</a></div></div>
</div>
</div>
</div>
</div>
</body>
</html>
⌨️ 快捷键说明
复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?