C++从文件中按照单词读取内容

读取方式: 逐词读取, 词之间用空格区分，遇到”.”就停止读取，返回的内容存取在vector中

//read data from the file, Word By Word
//when used in this manner, we'll get space-delimited bits of text from the file
//but all of the whitespace that separated words (including newlines) was lost. 
//http://www.75271.com
vector<string> ReadDataFromFileWBW()
{
    ifstream fin("Input.txt");  
    string strWord("");
    vector<string> v;
    while( fin >> strWord ) 
    { 
    //字符串string类的比较要用compare函数
        if (strWord.compare(strWord.length()-1, 1, ".") == 0)   
        {
            strWord.erase(strWord.length()-1, 1);
            v.push_back(strWord);
            return v;
        }   
        v.push_back(strWord);
    }
}