DataFrame使用总结1(超实用): 1. 合并两个表 frame = [df1, df2] df = pd.concat(frame) res = pd.merge(df, df1, on=['key', 'key1'], how='inner') res = pd.merge(df, df1, left_on=['key'], left_on=['key1'], how='inner') 合并表的操作(Merge, join, and concatenate) http://pandas…