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C++程序设计:原理与实践(基础篇)(原书第2版)
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C++程序设计:原理与实践(基础篇)(原书第2版)

by 本贾尼 斯特劳斯特鲁普
August 2021
Intermediate to advanced
450 pages
9h 36m
Chinese
Pearson
Content preview from C++程序设计:原理与实践(基础篇)(原书第2版)

简单练习

1.定义template<typename T>struct S{T val;};。

2.添加构造函数,使得能够对T初始化。

3.定义S<int>、S<char>、S<double>、S<string>和S<vector<int>>类型的变量,并将其初始化。

4.读取并打印上述变量的值。

5.添加函数get(),该函数返回对val的引用。

6.在类之外编写get()的定义。

7.将val设为私有成员。

8.通过get()函数完成练习4中的任务。

9.添加函数模板set()以能够改变val。

10.通过S<T>::operator=(const T&)取代set()。提示:比14.2.5节更简单。

11.编写get[]的const版本和非const版本。

12.定义函数template<typename T>read_val(T&v),该函数能够将cin中读取的值写入v。

13.通过read_val()读取值,存入练习3中前四个变量。

14.加分题:为vector<T>定义输入和输出运算符(>>和<<)。两个运算符都使用{val,val,val,val}格式。这使得read_val()也能处理S<vector<int>>变量。

记住在每一步中对代码进行测试。

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Publisher Resources

ISBN: 9787111562252