我可以在while循环中放置原型和定义吗？ [英] Can I put a prototype and definition in a while loop?

问题描述

我必须在命令提示符下为c ++制作一个电影列表。然后，用户需要键入一组字母，然后计算机在电影列表中找到这些字母，并打印出该组字母被提及的次数。



我尝试过：



这是我的导师给我们的代码

I have to make a list of movies in the command prompt for c++. Then the user needs to type in a group of letters that then the computer finds in the list of movies, and prints out the number of times that group of letters is mentioned.

What I have tried:

this is the code my instructor gave us

cout << "Words beginning with 'ca': " << endl;
    for (int i = 0; i < words.size(); i++)
    {
        if (words[i].substr(0, 2) == "ca")
            /// OR:  words[i].find("ca") == 0
        {
            cout << words[i] << endl;
        }
        total += words[i].length();
    }

推荐答案

不，你不应该。常量应该是全局的，并且位于源文件的顶部，并且带有一些命令，大写字母用于良好的编码实践。在重用质量中始终写入代码。

No you shouldnt. Constant should be global and at the top of a source file and with some commands, upper letters for good coding practice. Write always code in "reuse quality".

// Prefix is recommanded
const char *PREFIX_MOVIE = "ca";

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