我想用 C++ 创建一个文件，但我不知道该怎么做.例如，我想创建一个名为 Hello.txt 的文本文件.
I want to create a file using C++, but I have no idea how to do it. For example I want to create a text file named Hello.txt.
有人可以帮我吗?
一种方法是创建 ofstream 类的一个实例，并使用它来写入您的文件.这是一个网站链接，其中包含一些示例代码，以及有关大多数 C++ 实现可用的标准工具的更多信息:
One way to do this is to create an instance of the ofstream class, and use it to write to your file. Here's a link to a website that has some example code, and some more information about the standard tools available with most implementations of C++:
ofstream 参考
为了完整起见，这里有一些示例代码:
For completeness, here's some example code:
// using ofstream constructors.
#include <iostream>
#include <fstream>
std::ofstream outfile ("test.txt");
outfile << "my text here!" << std::endl;
outfile.close();
您想使用 std::endl 来结束您的行.另一种方法是使用 ' ' 字符.这两件事是不同的， std::endl 刷新缓冲区并立即写入您的输出，而 ' ' 允许输出文件将所有输出放入缓冲区，并可能稍后写入.
You want to use std::endl to end your lines. An alternative is using ' ' character. These two things are different, std::endl flushes the buffer and writes your output immediately while ' ' allows the outfile to put all of your output into a buffer and maybe write it later.
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