我们“老板”让我记录 http://www.cjh.com.cn/ 上面的长江水文数据！此网站有个变态的事情就是数据只是在一段时间内才有，例如：我是要记录早晨8时的数据，而此数据一般只出现在早晨8时和早晨9时之间，一旦到了9时之后，数据可能就要更新了，最开始的时候，我都是早晨起来用 Weibo 截图发布来记录，知道有一天我突发奇想，我还是写个程序吧，于是此程序就出现了！

首先看看预览吧！

基本思路：

  • 提取网页中的文字，通过特征字符来查找需要的信息！
  • 将查找的有用信息添加到 List 中！
  • 将 List 中的数据导入到 DataGridView 或是 Excel 中！

遇到的问题：

  • 刷新网页的时候，可能弹出广告，就不可以正确提取数据！
  • 确定是否都是8时的数据！
  • 为了尽量缩短刷新页面的次数，测试时间在 8:30 - 9:00 之间，若是此段时间一直未出现都是8时的情况，需要另想办法！
  • C# 对于 Excel 的操作！

具体实现步骤如下：

① 全局变量：

public struct Info　　//用来记录表格中的四个属性数据
{public string name;public string date;public string water;public string stream;
}//引用：using Excel = Microsoft.Office.Interop.Excel;
Excel.Application ex = new Excel.Application();
Excel.Workbook eWorkbook;
Excel.Worksheet eWorksheet;int countRecorderDay = 0;   //用来记录白天的记载次数
int countRecorderNight = 0; //用来记录夜间的记录次数
int count = 0;  //倒计时来用string saveFilePath = Environment.CurrentDirectory + @"\长江水文\长江水文.xlsx"; //Excel的文件地址

② 添加控件：

timer1：用来记录总时间，每隔1分钟记录一次，到达 8:30 启动 timer2；

timer2：记录局部操作，开始刷新网页；

timer3：倒计时；

notifyIcon1：用来显示在任务栏中的通知；

contextMenuStrip2：用来显示通知的右键菜单。

③ 具体代码：

timer1_Tick 事件：

View Code

private void timer1_Tick(object sender, EventArgs e)    //计时器1
{if ((DateTime.Now.Hour == 8 && DateTime.Now.Minute >= 30 && countRecorderDay == 0) || (DateTime.Now.Hour == 20 && DateTime.Now.Minute >= 30 && countRecorderNight == 0)){timer2.Enabled = true;  //开启 timer2lbTimer2.Text = "计时器2开启！";lbTimer1.Text = "计时器1关闭！";timer1.Enabled = false;return;}if (DateTime.Now.Hour == 23 && DateTime.Now.Minute >= 55)    //夜间11点，将数据归零，等待第二天记录
    {countRecorderDay = 0;countRecorderNight = 0;}lbTimer1.Text = "计时器1开启！";lbRecord.Text = "上一次操作时间：" + DateTime.Now.ToShortTimeString();    //记录 timer1 操作时间上次操作时间ToolStripMenuItem.Text = lbRecord.Text;
}

Form1_Load 事件：

View Code

private void Form1_Load(object sender, EventArgs e)
{webBrowser1.Url = new System.Uri("http://www.cjh.com.cn/");lbRecord.Text = "上一次操作时间：" + DateTime.Now.ToShortTimeString();上次操作时间ToolStripMenuItem.Text = lbRecord.Text;
}

btRefresh_Click 事件：

View Code

private void btRefresh_Click(object sender, EventArgs e)  //刷新网站
{webBrowser1.Url = new System.Uri("http://www.cjh.com.cn/");
}

btShowData_Click 事件：

View Code

private void btShowData_Click(object sender, EventArgs e)  //数据出表
{webBrowser1.Url = new System.Uri("http://www.cjh.com.cn/");string strText = null;try{strText = webBrowser1.Document.Body.InnerText;}catch (System.Exception ex){MessageBox.Show(ex.ToString());}if (strText == null)return;int indexFront = strText.IndexOf("寸滩");int indexAfter = strText.IndexOf("防汛测报");string text = strText.Substring(indexFront, indexAfter - indexFront);string[] strLines = new string[20];strLines = text.Split(new char[] { '\n' });List<Info> content = new List<Info>();for (int i = 0; i < strLines.Length;i++ ){string[] parts = new string[5];if (strLines[i].Length < 5)break;parts = strLines[i].Split(new char[] { ' ' });Info inner = new Info();inner.name = parts[0];inner.date = parts[1];inner.water = parts[2].Substring(0, parts[2].IndexOf(".") + 3);inner.stream = parts[2].Substring(parts[2].IndexOf(".") + 3);content.Add(inner);}DataTable table = new DataTable();DataColumn columnName = new DataColumn("站点");DataColumn columnDate = new DataColumn("时间");DataColumn columnWater = new DataColumn("水位");DataColumn columnStream = new DataColumn("流量");table.Columns.Add(columnName);table.Columns.Add(columnDate);table.Columns.Add(columnWater);table.Columns.Add(columnStream);foreach (Info info in content){DataRow row = table.NewRow();row[0] = info.name;row[1] = info.date;row[2] = info.water;row[3] = info.stream;table.Rows.Add(row);}dataGridView1.DataSource = table;
}

btRecorder_Click 事件：

View Code

private void btRecorder_Click(object sender, EventArgs e)   //记录数据
{#region 获取网站的中的数据，并存到 List 中webBrowser1.Url = new System.Uri("http://www.cjh.com.cn/");  //刷新网站string strText = webBrowser1.Document.Body.InnerText;   if (strText == null)return;int indexFront = strText.IndexOf("寸滩");int indexAfter = strText.IndexOf("防汛测报");string text = null;if (indexFront > 0 && indexAfter > indexFront)text = strText.Substring(indexFront, indexAfter - indexFront);  //获取有用的部分elsereturn;string[] strLines = new string[20];strLines = text.Split(new char[] { '\n' }); //将内容按回车分割成数组
List<Info> content = new List<Info>();  //获取数据的每一个部分for (int i = 0; i < strLines.Length; i++){string[] parts = new string[5];if (strLines[i].Length < 5)break;parts = strLines[i].Split(new char[] { ' ' });Info inner = new Info();inner.name = parts[0];inner.date = parts[1];inner.water = parts[2].Substring(0, parts[2].IndexOf(".") + 3);inner.stream = parts[2].Substring(parts[2].IndexOf(".") + 3);content.Add(inner);}#endregionint countDay = 0;int countNight = 0;foreach (Info info in content){if (info.date.Contains("8时"))   //获取8时的数据countDay++;else if (info.date.Contains("20时"))countNight++;}#region 定义 lunarMonth 和 lunarDayHashtable lunarMonth = new Hashtable();lunarMonth.Add(1, "正");lunarMonth.Add(2, "二");lunarMonth.Add(3, "三");lunarMonth.Add(4, "四");lunarMonth.Add(5, "五");lunarMonth.Add(6, "六");lunarMonth.Add(7, "七");lunarMonth.Add(8, "八");lunarMonth.Add(9, "九");lunarMonth.Add(10, "十");lunarMonth.Add(11, "十一");lunarMonth.Add(12, "十二");Hashtable lunarDay = new Hashtable();lunarDay.Add(1, "初一");lunarDay.Add(2, "初二");lunarDay.Add(3, "初三");lunarDay.Add(4, "初四");lunarDay.Add(5, "初五");lunarDay.Add(6, "初六");lunarDay.Add(7, "初七");lunarDay.Add(8, "初八");lunarDay.Add(9, "初九");lunarDay.Add(10, "初十");lunarDay.Add(11, "十一");lunarDay.Add(12, "十二");lunarDay.Add(13, "十三");lunarDay.Add(14, "十四");lunarDay.Add(15, "十五");lunarDay.Add(16, "十六");lunarDay.Add(17, "十七");lunarDay.Add(18, "十八");lunarDay.Add(19, "十九");lunarDay.Add(20, "二十");lunarDay.Add(21, "二十一");lunarDay.Add(22, "二十二");lunarDay.Add(23, "二十三");lunarDay.Add(24, "二十四");lunarDay.Add(25, "二十五");lunarDay.Add(26, "二十六");lunarDay.Add(27, "二十七");lunarDay.Add(28, "二十八");lunarDay.Add(29, "二十九");lunarDay.Add(30, "三十");#endregionif (countDay == 11){#region 8时string excelPath = saveFilePath;eWorkbook = ex.Workbooks.Open(excelPath);　　　　//打开文件，赋值到工作簿ex.Visible = false;　　　　　　　　　　　　　　　　　　　　//程序显示eWorksheet = (Excel.Worksheet)eWorkbook.Sheets[1];　　//获取第一个工作表//新格式string date = DateTime.Today.Month + "月" + DateTime.Today.Day + "日";ChineseLunisolarCalendar lunar = new ChineseLunisolarCalendar();string dateLunar = lunarMonth[GetMonthFromYear(DateTime.Today.Date)] + "月" + lunarDay[lunar.GetDayOfMonth(DateTime.Today.Date)]; int row = ex.Application.get_Range("B65535", Type.Missing).get_End(Excel.XlDirection.xlUp).Row;eWorksheet.get_Range("A" + (row + 1).ToString()).Value = date;eWorksheet.get_Range("B" + (row + 1).ToString()).Value = DateTime.Now.Hour + "时";eWorksheet.get_Range("C" + (row + 1).ToString()).Value = dateLunar;eWorksheet.get_Range("D" + (row + 1).ToString()).Value = content[0].water;eWorksheet.get_Range("E" + (row + 1).ToString()).Value = content[0].stream;eWorksheet.get_Range("F" + (row + 1).ToString()).Value = content[1].water;eWorksheet.get_Range("G" + (row + 1).ToString()).Value = content[1].stream;eWorksheet.get_Range("H" + (row + 1).ToString()).Value = content[2].water;eWorksheet.get_Range("I" + (row + 1).ToString()).Value = content[2].stream;eWorksheet.get_Range("J" + (row + 1).ToString()).Value = content[3].water;eWorksheet.get_Range("K" + (row + 1).ToString()).Value = content[3].stream;eWorksheet.get_Range("L" + (row + 1).ToString()).Value = content[4].water;eWorksheet.get_Range("M" + (row + 1).ToString()).Value = content[4].stream;eWorksheet.get_Range("N" + (row + 1).ToString()).Value = content[5].water;eWorksheet.get_Range("O" + (row + 1).ToString()).Value = content[5].stream;eWorksheet.get_Range("P" + (row + 1).ToString()).Value = content[6].water;eWorksheet.get_Range("Q" + (row + 1).ToString()).Value = content[6].stream;eWorksheet.get_Range("R" + (row + 1).ToString()).Value = content[7].water;eWorksheet.get_Range("S" + (row + 1).ToString()).Value = content[7].stream;eWorksheet.get_Range("T" + (row + 1).ToString()).Value = content[8].water;eWorksheet.get_Range("U" + (row + 1).ToString()).Value = content[8].stream;eWorksheet.get_Range("V" + (row + 1).ToString()).Value = content[9].water;eWorksheet.get_Range("W" + (row + 1).ToString()).Value = content[9].stream;eWorksheet.get_Range("X" + (row + 1).ToString()).Value = content[10].water;eWorksheet.get_Range("Y" + (row + 1).ToString()).Value = content[10].stream;eWorkbook.Save();ex.Quit();this.Focus();timer2.Enabled = false;lbTimer2.Text = "计时器2关闭！";timer1.Enabled = true;lbTimer1.Text = "计时器1开启！";label4.Text = DateTime.Now.ToShortDateString() + " 8时 记录完毕！";countRecorderDay++;#endregion}if (countNight == 11){#region 20时string excelPath = saveFilePath;eWorkbook = ex.Workbooks.Open(excelPath);　　　　//打开文件，赋值到工作簿ex.Visible = false;　　　　　　　　　　　　　　　　　　　　//程序显示eWorksheet = (Excel.Worksheet)eWorkbook.Sheets[1];　　//获取第一个工作表//新格式string date = DateTime.Today.Month + "月" + DateTime.Today.Day + "日";ChineseLunisolarCalendar lunar = new ChineseLunisolarCalendar();string dateLunar = lunarMonth[GetMonthFromYear(DateTime.Today.Date)] + "月" +lunarDay[lunar.GetDayOfMonth(DateTime.Today.Date)];int row = ex.Application.get_Range("B65535", Type.Missing).get_End(Excel.XlDirection.xlUp).Row;//eWorksheet.get_Range("A" + (row + 1).ToString()).Value = date;eWorksheet.get_Range("B" + (row + 1).ToString()).Value = DateTime.Now.Hour + "时";//eWorksheet.get_Range("C" + (row + 1).ToString()).Value = dateLunar;
eWorksheet.get_Range("D" + (row + 1).ToString()).Value = content[0].water;eWorksheet.get_Range("E" + (row + 1).ToString()).Value = content[0].stream;eWorksheet.get_Range("F" + (row + 1).ToString()).Value = content[1].water;eWorksheet.get_Range("G" + (row + 1).ToString()).Value = content[1].stream;eWorksheet.get_Range("H" + (row + 1).ToString()).Value = content[2].water;eWorksheet.get_Range("I" + (row + 1).ToString()).Value = content[2].stream;eWorksheet.get_Range("J" + (row + 1).ToString()).Value = content[3].water;eWorksheet.get_Range("K" + (row + 1).ToString()).Value = content[3].stream;eWorksheet.get_Range("L" + (row + 1).ToString()).Value = content[4].water;eWorksheet.get_Range("M" + (row + 1).ToString()).Value = content[4].stream;eWorksheet.get_Range("N" + (row + 1).ToString()).Value = content[5].water;eWorksheet.get_Range("O" + (row + 1).ToString()).Value = content[5].stream;eWorksheet.get_Range("P" + (row + 1).ToString()).Value = content[6].water;eWorksheet.get_Range("Q" + (row + 1).ToString()).Value = content[6].stream;eWorksheet.get_Range("R" + (row + 1).ToString()).Value = content[7].water;eWorksheet.get_Range("S" + (row + 1).ToString()).Value = content[7].stream;eWorksheet.get_Range("T" + (row + 1).ToString()).Value = content[8].water;eWorksheet.get_Range("U" + (row + 1).ToString()).Value = content[8].stream;eWorksheet.get_Range("V" + (row + 1).ToString()).Value = content[9].water;eWorksheet.get_Range("W" + (row + 1).ToString()).Value = content[9].stream;eWorksheet.get_Range("X" + (row + 1).ToString()).Value = content[10].water;eWorksheet.get_Range("Y" + (row + 1).ToString()).Value = content[10].stream;eWorkbook.Save();ex.Quit();this.Focus();//Application.Exit();timer2.Enabled = false;lbTimer2.Text = "计时器2关闭！";timer1.Enabled = true;lbTimer1.Text = "计时器1开启！";label4.Text = DateTime.Now.ToShortDateString() + " 20时 记录完毕！";countRecorderNight++;#endregion}
}

btOpenFile_Click 事件：

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private void btOpenFile_Click(object sender, EventArgs e)  //打开工作簿
{if (btOpenFile.Text == "打开Excel查看"){string excelPath = saveFilePath;eWorkbook = ex.Workbooks.Open(excelPath);　　　　//打开文件，赋值到工作簿int rowNum = ex.Application.get_Range("B65535", Type.Missing).get_End(Excel.XlDirection.xlUp).Row;eWorksheet = (Excel.Worksheet)eWorkbook.Sheets[1];eWorksheet.get_Range("B" + (rowNum + 5).ToString()).Value = null;   //保证滚到此位置ex.Visible = true;btOpenFile.Text = "保存关闭Excel";}       else if(btOpenFile.Text == "保存关闭Excel"){eWorkbook.Save();ex.Quit();btOpenFile.Text = "打开Excel查看";}
}

btDownloadData_Click 事件：

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private void btDownloadData_Click(object sender, EventArgs e)  //保存当前数据
{#region 获取网站的中的数据，并存到 List 中webBrowser1.Url = new System.Uri("http://www.cjh.com.cn/");  //刷新网站string strText = webBrowser1.Document.Body.InnerText;if (strText == null)return;int indexFront = strText.IndexOf("寸滩");int indexAfter = strText.IndexOf("防汛测报");string text = null;if (indexFront > 0 && indexAfter > indexFront){text = strText.Substring(indexFront, indexAfter - indexFront);  //获取有用的部分
            }else{return;}string[] strLines = new string[20];strLines = text.Split(new char[] { '\n' }); //将内容按回车分割成数组
List<Info> content = new List<Info>();  //获取数据的每一个部分for (int i = 0; i < strLines.Length; i++){string[] parts = new string[5];if (strLines[i].Length < 5)break;parts = strLines[i].Split(new char[] { ' ' });Info inner = new Info();inner.name = parts[0];inner.date = parts[1];inner.water = parts[2].Substring(0, parts[2].IndexOf(".") + 3);inner.stream = parts[2].Substring(parts[2].IndexOf(".") + 3);content.Add(inner);}#endregionint countDay = 0;int countNight = 0;foreach (Info info in content){if (info.date.Contains("8时"))   //获取8时的数据countDay++;else if (info.date.Contains("20时"))countNight++;}#region 定义 lunarMonth 和 lunarDayHashtable lunarMonth = new Hashtable();lunarMonth.Add(1, "正");lunarMonth.Add(2, "二");lunarMonth.Add(3, "三");lunarMonth.Add(4, "四");lunarMonth.Add(5, "五");lunarMonth.Add(6, "六");lunarMonth.Add(7, "七");lunarMonth.Add(8, "八");lunarMonth.Add(9, "九");lunarMonth.Add(10, "十");lunarMonth.Add(11, "十一");lunarMonth.Add(12, "十二");Hashtable lunarDay = new Hashtable();lunarDay.Add(1, "初一");lunarDay.Add(2, "初二");lunarDay.Add(3, "初三");lunarDay.Add(4, "初四");lunarDay.Add(5, "初五");lunarDay.Add(6, "初六");lunarDay.Add(7, "初七");lunarDay.Add(8, "初八");lunarDay.Add(9, "初九");lunarDay.Add(10, "初十");lunarDay.Add(11, "十一");lunarDay.Add(12, "十二");lunarDay.Add(13, "十三");lunarDay.Add(14, "十四");lunarDay.Add(15, "十五");lunarDay.Add(16, "十六");lunarDay.Add(17, "十七");lunarDay.Add(18, "十八");lunarDay.Add(19, "十九");lunarDay.Add(20, "二十");lunarDay.Add(21, "二十一");lunarDay.Add(22, "二十二");lunarDay.Add(23, "二十三");lunarDay.Add(24, "二十四");lunarDay.Add(25, "二十五");lunarDay.Add(26, "二十六");lunarDay.Add(27, "二十七");lunarDay.Add(28, "二十八");lunarDay.Add(29, "二十九");lunarDay.Add(30, "三十");#endregionif (true){#region 当前时刻string excelPath = saveFilePath;eWorkbook = ex.Workbooks.Open(excelPath);　　　　//打开文件，赋值到工作簿ex.Visible = false;　　　　　　　　　　　　　　　　　　　　//程序显示eWorksheet = (Excel.Worksheet)eWorkbook.Sheets[1];　　//获取第一个工作表//新格式string date = DateTime.Today.Month + "月" + DateTime.Today.Day + "日";ChineseLunisolarCalendar lunar = new ChineseLunisolarCalendar();string dateLunar = lunarMonth[GetMonthFromYear(DateTime.Today.Date)] + "月" +lunarDay[lunar.GetDayOfMonth(DateTime.Today.Date)];int row = ex.Application.get_Range("B65535", Type.Missing).get_End(Excel.XlDirection.xlUp).Row;eWorksheet.get_Range("A" + (row + 1).ToString()).Value = date;eWorksheet.get_Range("B" + (row + 1).ToString()).Value = DateTime.Now.ToShortTimeString();eWorksheet.get_Range("C" + (row + 1).ToString()).Value = dateLunar;eWorksheet.get_Range("D" + (row + 1).ToString()).Value = content[0].water;eWorksheet.get_Range("E" + (row + 1).ToString()).Value = content[0].stream;eWorksheet.get_Range("F" + (row + 1).ToString()).Value = content[1].water;eWorksheet.get_Range("G" + (row + 1).ToString()).Value = content[1].stream;eWorksheet.get_Range("H" + (row + 1).ToString()).Value = content[2].water;eWorksheet.get_Range("I" + (row + 1).ToString()).Value = content[2].stream;eWorksheet.get_Range("J" + (row + 1).ToString()).Value = content[3].water;eWorksheet.get_Range("K" + (row + 1).ToString()).Value = content[3].stream;eWorksheet.get_Range("L" + (row + 1).ToString()).Value = content[4].water;eWorksheet.get_Range("M" + (row + 1).ToString()).Value = content[4].stream;eWorksheet.get_Range("N" + (row + 1).ToString()).Value = content[5].water;eWorksheet.get_Range("O" + (row + 1).ToString()).Value = content[5].stream;eWorksheet.get_Range("P" + (row + 1).ToString()).Value = content[6].water;eWorksheet.get_Range("Q" + (row + 1).ToString()).Value = content[6].stream;eWorksheet.get_Range("R" + (row + 1).ToString()).Value = content[7].water;eWorksheet.get_Range("S" + (row + 1).ToString()).Value = content[7].stream;eWorksheet.get_Range("T" + (row + 1).ToString()).Value = content[8].water;eWorksheet.get_Range("U" + (row + 1).ToString()).Value = content[8].stream;eWorksheet.get_Range("V" + (row + 1).ToString()).Value = content[9].water;eWorksheet.get_Range("W" + (row + 1).ToString()).Value = content[9].stream;eWorksheet.get_Range("X" + (row + 1).ToString()).Value = content[10].water;eWorksheet.get_Range("Y" + (row + 1).ToString()).Value = content[10].stream;eWorkbook.Save();ex.Quit();this.Focus();label4.Text = DateTime.Now.ToShortDateString() + DateTime.Now.ToShortTimeString() + "记录完毕！";#endregion}
}

其他杂项 - 包括函数以及菜单点击事件和通知相关操作

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private int GetMonthFromYear(DateTime time) //获取农历数据中的月份
        {ChineseLunisolarCalendar clc = new ChineseLunisolarCalendar();if (clc.GetLeapMonth(time.Year) != 0)   //存在闰月
            {if (clc.GetMonth(time) > clc.GetLeapMonth(time.Year))   //如果月份大于闰月
                {return clc.GetMonth(time) - 1;}}return clc.GetMonth(time);}private void Form1_SizeChanged(object sender, EventArgs e){if (this.WindowState == FormWindowState.Minimized){this.Visible = false;this.notifyIcon1.Visible = true;}}private void notifyIcon1_MouseUp(object sender, MouseEventArgs e){if (e.Button == MouseButtons.Left){if (this.Visible == false){this.Visible = true;this.WindowState = FormWindowState.Normal;}else{this.Visible = false;this.WindowState = FormWindowState.Minimized;}}else if (e.Button == MouseButtons.Right){notifyIcon1.ContextMenuStrip = contextMenuStrip2;}}private void 显示主窗体ToolStripMenuItem_Click(object sender, EventArgs e){this.Visible = true;this.Focus();this.WindowState = FormWindowState.Normal;}private void 退出ToolStripMenuItem1_Click(object sender, EventArgs e){Application.Exit();}private void 主窗体显示ToolStripMenuItem_Click(object sender, EventArgs e){this.Visible = true;this.Focus();this.WindowState = FormWindowState.Normal;}private void 打开Excel查看ToolStripMenuItem_Click(object sender, EventArgs e){btOpenFile_Click(btOpenFile, e);打开Excel查看ToolStripMenuItem.Text = btOpenFile.Text;}private void 退出ToolStripMenuItem_Click(object sender, EventArgs e){Application.Exit();}

timer2_Tick 事件：

View Code

private void timer2_Tick(object sender, EventArgs e)    //计时器2
{label4.Text = "上一次操作时间：" + DateTime.Now.ToShortTimeString();btRecorder_Click(btRecorder, e);
}

timer3_Tick 事件：

View Code

private void timer3_Tick(object sender, EventArgs e)    //计时器3
{lbCountdown.Text = String.Format("{0:000}",(60 - (count % 60)));count++;if (DateTime.Now.Hour == 8 && DateTime.Now.Minute == 59 && DateTime.Now.Second == 30)  //最后时刻监测，若是还没有添加数据，则主动添加，并打开网页！
    {if (countRecorderDay == 0){btDownloadData_Click(btDownloadData, e);System.Diagnostics.Process.Start("http://www.cjh.com.cn/");timer1.Enabled = true;timer2.Enabled = false;}}if (DateTime.Now.Hour == 20 && DateTime.Now.Minute == 59 && DateTime.Now.Second == 30){if (countRecorderNight == 0){btDownloadData_Click(btDownloadData, e);System.Diagnostics.Process.Start("http://www.cjh.com.cn/");timer1.Enabled = true;timer2.Enabled = false;}}if (DateTime.Now.Hour == 10 && DateTime.Now.Minute == 30 && DateTime.Now.Second == 30)  //承接上面，若数据添加不全，则在一个半小时后再次添加！
    {btRefresh_Click(btRefresh, e);  //否则在执行20时的时候，此时网页还是8时的效果，因此还会加载一次！if (countRecorderDay == 0){btDownloadData_Click(btDownloadData, e);System.Diagnostics.Process.Start("http://www.cjh.com.cn/");}}if (DateTime.Now.Hour == 22 && DateTime.Now.Minute == 30 && DateTime.Now.Second == 30){btRefresh_Click(btRefresh, e);if (countRecorderNight == 0){btDownloadData_Click(btDownloadData, e);System.Diagnostics.Process.Start("http://www.cjh.com.cn/");}}
}

④ 源程序下载：>>☞i☜<<

修改：

1. 在加入文本的时候，之前是按字符串添加，因此到达Excel中也是字符串格式的数字文本，修改如下，将字符串转为数字格式再加入到Excel中！

eWorksheet.get_Range("D" + (row + 1).ToString()).Value = Convert.ToSingle(content[0].water);
eWorksheet.get_Range("E" + (row + 1).ToString()).Value = Convert.ToSingle(content[0].stream);eWorksheet.get_Range("F" + (row + 1).ToString()).Value = Convert.ToSingle(content[1].water);
eWorksheet.get_Range("G" + (row + 1).ToString()).Value = Convert.ToSingle(content[1].stream);

2. 若是直接将Excel中的文本转为数字类型，要首先将单元格的Value值转为String，如下所示！

for (int i = 4; i <= 56;i++ )
{eWorksheet.get_Range(str + i.ToString()).Value = Convert.ToSingle(eWorksheet.get_Range(str + i.ToString()).Value.ToString());
}

转载于:https://www.cnblogs.com/alex-bn-lee/archive/2012/07/05/2577371.html

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