二维数组 及 转换为 字符串

DataTable dtb = new DataTable();

 

string[][] m_list_2 = new string[2][];
string m_list_1 = "";

m_list_2[0] = new string[dtb.Rows.Count];
m_list_2[1] = new string[dtb.Rows.Count];
for (int i = 0; i < dtb.Rows.Count; i++)
{
    m_list_2[0][i] = dtb.Rows[i][0].ToString();
    m_list_2[1][i] = dtb.Rows[i][1].ToString();
    m_list_1 += m_list_2[0][i] + " " + m_list_2[1][i] + ",";
}