public void TestReadCell()
{
string dataFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "file", "forread.xlsx");
NPOIOperator oper = new NPOIOperator(dataFilePath, true);
var sheet = oper.GetSheet(0);
var row = sheet.GetRow(2);
var cell = row.GetCell(1);
var cellValue = oper.ReadCell(cell, CellDataType.Text);
Assert.AreEqual("李四", cellValue);
}