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如何在C++中将文本文档读成两个致死动态病媒?
原标题:How to read a text file into a two dymentional dynamic vector in C++?
  • 时间:2012-04-13 20:02:06
  •  标签:
  • c++
  • linux

我有两栏的文字档案,线号不明。 因此,我想把两栏装入动态的双维矢量。 在这方面,我迄今没有工作。 如果这是个方面,我知道如何做到这一点。 白色空间分两栏。 由于一读两栏,我只需要2个大小矢量。

vector<vector<string> > component;
ifstream in_file("/tmp/FW.txt", ios::binary);

//Check if the file is open
if(!in_file.is_open()) 
{
   cout << "File not opened..." << endl;
   exit (1);
}

for(int i=0; !in_file.eof(); i++)
{
   in_file >> component.push_back();  
   //component.push_back(in_file);
}

请允许我告诉我,如何做到这一点? 又 如果你能够告诉我,如何重印双层病媒,那么它就象原始文件一样,也是空洞的。 这需要在Liberat(Red hat)上运行。

最佳回答

如何:

vector< vector<string> > component;
ifstream in_file("/tmp/FW.txt"); // N.B., not ios::binary since you re reading text strings
vector<string> vs( 2 );
// Assume they are separated by just whitespace
while( in_file >> vs[0] >> vs[1] )
{
    component.push_back( vs );
}
问题回答

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