subject_42668.htm

一些关于vc的问答

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序号：42668 发表者：wp 发表日期：2003-06-05 07:44:46
<br>主题：重载
<br>内容：我自己写了一个类 CPlugin<BR>它的成员变量有CString m_strUserName<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CString m_strSessionName;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CStringList m_strFileNameList;<BR>现在要重载＝<BR>请问应该怎么写？<BR>急 谢谢了！ 
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<font color=red>答案被接受</font><br>回复者：擎天柱 回复日期：2003-06-05 08:32:23
<br>内容：CPlugin&amp; CPlugin::operator=(const CPlugin&amp; rhs)<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;// ToDo: Add your specialized code here and/or call the base class<BR>&nbsp;&nbsp;&nbsp;&nbsp;if( this == &amp;rhs )<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return *this;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;m_strUserName&nbsp;&nbsp;&nbsp;&nbsp; = rhs.m_strUserName;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;m_strSessionName&nbsp;&nbsp;= rhs.m_strSessionName;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// 自己写list的赋值吧！<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;m_strFileNameList;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;return *this;<BR>}
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回复者：Neil Gan 回复日期：2003-06-05 08:44:50
<br>内容：if you only have these member variables, you don't need to write a operator= function yourself, vc will implement one for you that copy the members one by one, and it is perfectly ok for your class.
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