C#导出csv
DataTable dt = (dataGridView7.DataSource as DataTable);
if (dt != null)
{
string subPath = @"D:\网点财务数据导出\";
if (false == System.IO.Directory.Exists(subPath))
{
//创建pic文件夹
System.IO.Directory.CreateDirectory(subPath);
}
string filename = DateTime.Now.ToString();
CsvHelper.WriteCSV(@"D:\网点财务数据导出\" + filename + "日总账.csv", dt);
MessageBox.Show("导出成功，请到 D:\\网点财务数据导出 中查看");
}