ItemID,Sentiment,SentimentSource,SentimentText
1,0,Sentiment140, ok thats it you win.
2,0,Sentiment140, i think mi bf is cheating on me!!! T_T
3,0,Sentiment140," I'm completely useless rt now. Funny, all I can do is twitter. "
如何将这样的 csv 文件读入 R 中？