C# 对Excel表格的操作

using Excel;
using System.Reflection;


namespace getData
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }


        private void Form1_Load(object sender, EventArgs e)
        {
           
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //1.创建Exl应用程序对象,并显示与否.
            Excel.Application xApp = new Excel.ApplicationClass();
            xApp.Visible = true;

            //2.创建WorkBook对象,可以有两种方式,:1.新建一个WorkBook,2.打开已有的文件.
            //Workbook newBook = xApp.Workbooks.Add(Missing.Value);      //新建表.
            Workbook xBook = xApp.Workbooks._Open(@"d:\test.xls", Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);

            //3.选择Sheet表,两种方式:
            Worksheet tempSheet = (Excel.Worksheet)xBook.Sheets[2]; //按序表.
            //Worksheet xSheet = (Excel.Worksheet)xBook.ActiveSheet;  //当前表.
           

            //读取数据,通过Range对象(通过n行n列),当单元格为空时,会报错.
            Excel.Range rng1 = tempSheet.get_Range("A1", Type.Missing);
            //MessageBox.Show(rng1.Value2.ToString());

            //读取数据,通过Range对象,便使用不同的接口得到Range
            Range rng2 = (Excel.Range)tempSheet.Cells[1, 1];
            //MessageBox.Show(rng1.Value2.ToString());

            //写入数据,注(好像指针一样,看着写到了变量了,但是写到了Exl表上)
            for (int i = 1; i < 10; i++)
            {
                //Range rng3 = tempSheet.get_Range("C6", Missing.Value);
                Range rng3 = (Excel.Range)tempSheet.Cells[i,i];
                rng3.Value2 = "Hello";
                rng3.Interior.ColorIndex = 6;   //设置Range的背景色
            }

            //保存数据,方式一:
            //xBook.SaveAs(@"d:\bookSaveAs.xls", Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value,Missing.Value,Missing.Value);


            //保存方式二:
            tempSheet.SaveAs(@"d:\sheetSave.xls", Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);

            //保存方式三
            xBook.Save();

            //关闭Excel应用程序
            tempSheet = null;
            xApp.Quit();    //这句话非常重要,否则Exlcel对象不能从内存中退出.
            xApp = null;
        }
    }
}