August 2021
Intermediate to advanced
450 pages
9h 36m
Chinese
Content preview from C++程序设计：原理与实践（基础篇）（原书第2版）
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习题
1.如果你还没有完成本章中的“试一试”，请先完成相关练习。
2.下面的程序获得摄氏温度值并将其转化为绝对温度。但这些代码有很多错误。找到这些错误，指出并修改它们。
3.绝对零度是能够达到的最低温度；它是-273.15摄氏度或0K。即使上面的程序是正确的，当输入一个低于这个值的温度时，程序也应输出错误结果。检查一下，当输入一个低于-273.15摄氏度的数值时，主程序是否产生错误。
4.重做习题3，但这次把错误处理放在ctok（）中。
5.给这个程序增加一些功能，使它也可以把绝对温度转化为摄氏温度。
6.编写一个程序，它可以实现摄氏温度转化为华氏温度和华氏温度转换为摄氏温度（公式见4.3.3节）。用估计的方法（5.8节）看看你的结果是否合理。
7.一元二次方程的形式如下
解这个方程，用到求根公式：
这里面有一个问题：如果b2-4ac小于零的话，它将出错。编写一个可以解一元二次方程的程序。建立一个可以计算一元二次方程根的函数，给定a，b，c，如果b2-4ac小于0就抛出一个异常。让程序的主函数调用这个函数，如果有错误由主函数捕获异常。当程序发现方程没有实根的时候，输出相应的信息。你如何确定程序的结果是合理的？你能检验结果的正确性么？ ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.