如何取某个dataFrame最后几行的数据

Question

如题所述

Answer 1

var dic = dt1.Rows.OfType() .ToDictionary( x => x["姓名"].ToString(), x => (int)x["年龄"]); foreach (DataRow row in dt2.Rows) { string name = row["姓名"].ToString(); row["年龄"] = dic[name]; }本回答被网友采纳