为了以后自己方便查找，记录下来：
1. 引用命名空间, using Microsoft.VisualBasic.FileIO;
2. 关键代码:
var reader = new StreamReader(File.OpenRead(path1));
string[] values = null;
using (var csvReader = new TextFieldParser(reader))
{
while (!csvReader.EndOfData)
{
csvReader.SetDelimiters(new string[] { "," });
csvReader.HasFieldsEnclosedInQuotes = true;
values = csvReader.ReadFields();
}
}
原文：http://www.cnblogs.com/minco/p/3940107.html