c++ - Count number of lines in a text file

Question

I need to count the number of lines in a text file. This is the code I have right now.

CStdioFile sampleFile;
sampleFile.Open("test.txt",CFile::modeRead );
long length = 1;
CString row("");
while(sampleFile.ReadString(row))
{
    length++;
}

This isn't working. I'm not getting the correct value of the number of lines in the text file.What is wrong with this?

Thanks.

Answer 1

To read Unicode text files you might want to check CStdioFile derived implementation: CStdioFileEx from codeproject:

http://www.codeproject.com/Articles/4119/CStdioFile-derived-class-for-multibyte-and-Unicode

Answer 2

尝试从 0 开始计数：

long length = 0;

Answer 3

length应该初始化为，0而不是1，因为您还没有阅读第一行：

CString row;
long length = 0;
while (sampleFile.ReadString(row))
{
    length++;
}