📄 right4-3.htm
字号:
<html>
<head>
<meta http-equiv="Content-Language" content="zh-cn">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title>第 4 章</title>
<base target="rbottom">
<style>
<!--
.右标题 { font-size: 10pt; color: #000080; text-indent: 0; margin: 0 }
.右内容 { font-size: 10pt; text-align: left; text-indent: 0; line-height: 100%; margin:
0 }
-->
</style>
</head>
<body>
<p style="line-height: 100%; margin-top: 0; margin-bottom: 0"> </p>
<p style="line-height: 100%; margin-top: 0; margin-bottom: 0"><span style="position: absolute; left: 4; top: -8"><font size="2"><img border="0" src="1.gif" width="63" height="70"></font></span></p>
<p style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2"> </font></p>
<p style="line-height: 100%; text-indent: 0; margin: 0" class="右标题" align="left"><font size="2">
<span style="background-color: #CCFF99">第 4 章 </span>><span style="background-color: #CCFF99"> 第
3 节 </span>><span style="background-color: #CCFF99">
4.3 习题 </span></font></p>
<hr color="#008000" size="1">
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">1.
<font FACE="??ì?,SimSun" LANG="ZH-CN">什么是基类？什么是派生类？</font></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">2.
<font FACE="??ì?,SimSun" LANG="ZH-CN">什么是单继承？什么是多重继承？</font></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">3.
<font FACE="??ì?,SimSun" LANG="ZH-CN">继承的工作方式有哪几种？</font></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">4.
<font FACE="??ì?,SimSun" LANG="ZH-CN">请写出下列程序的运行结果。</font></font></p>
<blockquote>
<blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">#include<iostream.h></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">#include<stdio.h></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">#include<string.h></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">class
people //<font FACE="??ì?,SimSun" LANG="ZH-CN">人类</font></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">{ </font></p>
<blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">long
number; //<font FACE="??ì?,SimSun" LANG="ZH-CN">身份证号</font>(<font FACE="??ì?,SimSun" LANG="ZH-CN">假设</font>long<font FACE="??ì?,SimSun" LANG="ZH-CN">型，其长度够了</font>)</font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">char
name[20],sex; //<font FACE="??ì?,SimSun" LANG="ZH-CN">姓名，性别</font></font></p>
</blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">public:</font></p>
<blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">people(long
num=0,char* n="\0",char s='m')</font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">{
number=num; strcpy(name,n),sex=s; } //<font FACE="??ì?,SimSun" LANG="ZH-CN">构造函数</font></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">void
p_show( )</font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">{
cout<<"people: number="<<number;</font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">cout<<"
name="<<name<<" sex="<<sex<<endl; }</font></p>
</blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">};</font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">class
student:public people //<font FACE="??ì?,SimSun" LANG="ZH-CN">学生类，具有基类</font>people<font FACE="??ì?,SimSun" LANG="ZH-CN">类的全部数据结构和操作</font></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">{ </font></p>
<blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">int
s_num; //<font FACE="??ì?,SimSun" LANG="ZH-CN">学号</font></font></p>
</blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">public:</font></p>
<blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">int
s_class; //<font FACE="??ì?,SimSun" LANG="ZH-CN">班级</font></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">student(long
n,char* na,char s='m',int sn=0,int sc=0):people(n,na,s)</font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">{
s_num=sn; s_class=sc; } //<font FACE="??ì?,SimSun" LANG="ZH-CN">构造函数</font></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">void
s_show( )</font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">{
cout<<"student: "<<endl;;</font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">p_show(
);</font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">cout<<"
s_num="<<s_num<<"
s_class="<<s_class<<endl; }</font></p>
</blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">};</font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">class
member:public people //<font FACE="??ì?,SimSun" LANG="ZH-CN">教工类，具有基类</font>people<font FACE="??ì?,SimSun" LANG="ZH-CN">类的全部数据结构和操作</font></font></p>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">{ </font></p>
<blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">int
m_num; //<font FACE="??ì?,SimSun" LANG="ZH-CN">工号</font>---<font FACE="??ì?,SimSun" LANG="ZH-CN">私有成员</font></font></p>
</blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">public:</font></p>
<blockquote>
<p ALIGN="JUSTIFY" style="line-height: 100%; margin-top: 0; margin-bottom: 0"><font size="2">char
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -