如何编写cstringarray文件

问题描述

我想把CStringArray写入文件，我该怎么做？



我尝试过：

i want to write CStringArray to file, how can i do that ?

What I have tried:

CStringArray RegKeys;
for(int i = 0; i < RegKeys.GetCount(); i++)
	{

	CString str;
	
	str = RegKeys.GetAt(i);
	CFile file;
	if (!file.Open(_T("Test1.txt"),  CFile::modeWrite))
		return true;
	file.Write((LPCTSTR)str, str.GetLength() * sizeof(TCHAR));
	file.Close();

	}

推荐答案

// New line separated
file.Write((LPCTSTR)str, str.GetLength() * sizeof(TCHAR));
file.Write(_T("\r\n"), 2 * sizeof(TCHAR));

// With null byte
file.Write(str.GetString(), (str.GetLength() + 1) * sizeof(TCHAR));

但最简单的方法是使用序列化，这是支持 CStringArray ：

But the simplest method is using serialization which is supported by CStringArray:

CFile file(_T("Test1.txt"), CFile::modeCreate | CFile::modeWrite);
CArchive ar(&file, CArchive::store);
RegKeys.Serialize(ar);

使用哪种方法取决于您，但您必须使用相应的读取方法。



当不使用序列化时，你还应该将文件的开启和关闭移出循环：

Which method to use is up to you but you have to use a corresponding read method.

When not using serialization you should also move the file opening and closing out of the loop:

CFile file;
if (file.Open(_T("Test1.txt"),  CFile::modeWrite))
{
    // Loop to write strings goes here
    file.Close();
}

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