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1.Êý¾Ý°ó¶¨¡£ DataReader ¶ÁÈ¡Êý¾Ý£¬ÓÃDataTable.Load(IDataReader)·½·¨½«Êý¾Ý¼ÓÔص½ DataTable £¬ÓÃDataGridView ÏÔʾÊä³ö¡£²»Òª°ÑDataGridViewÖ±½Ó°ó¶¨µ½DataReaderµÄÄ¿µÄÊÇÊý¾Ýµ¼³öµ½Excelʱ£¬Êý¾ÝÔ´¿ÉÒÔÔٴδÓDataGridView»ñµÃ¡£
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/**//// <summary>
///
/// ** DataTable Êý¾Ýµ¼³öµ½ Excel **
///
///  Author: ÖÜÕñÐË (Zxjay Ʈң)
///
///  E-Mail: tda7264@163.com
///
///  Blog: http://blog.csdn.net/zxjay
///
///  Date: 07-08-31
///
/// </summary>
                Excel.Application app = new Excel.Application();
                app.Visible = false;
                Excel.Workbook wb = app.Workbooks.Add(true);
                Excel.Worksheet ws = (Excel.Worksheet)wb.Worksheets.Add(Type.Missing, Type.Missing, Type.Missing,
Type.Missing);
                DataTable dt = (DataTable)dgvClientInfo.DataSource;
                for (int i = 0; i < dt.Columns.Count; i++)
                ...{
                    ws.Cells[1, i + 1] = dt.Columns[i].ColumnName;
      


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int find(int *ID, int N)
{
int candidate;
int nTimes, i;
for (i = nTimes = 0; i < N; i++)
{
if (nTimes == 0)
{
candidate = ID[i];
nTimes = 1;
}
else if (candidate == ID[i])
{
nTimes++;
}
else
{
nTimes--;
......
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