DataTable转Dictionary

DataTable dt = new DataTable();
dt.Columns.Add("name");
dt.Columns.Add("no");
dt.Columns.Add("age");
dt.Columns.Add("sex");
dt.Rows.Add(new object[] { "小张", "0001", 5, "男" });
dt.Rows.Add(new object[] { "小王", "0002", 6, "男" });
dt.Rows.Add(new object[] { "小李", "0003", 7, "女" });
Dictionary dic = dt.Rows.Cast().ToDictionary(x => x[0].ToString(), x => x[1].ToString());
Dictionary dic2 = dt.Rows.Cast().ToDictionary(x => x["name"].ToString(), x => x["sex"].ToString());
int i = 0;
Dictionary dic3 = dt.Rows.Cast().ToDictionary(x => x["name"].ToString(), x =>i++);