y<-read.table("clipboard",header=T) union(x, y) # 并集 i intersect(x, y) # 交集 setdiff(x, y) # 差集 setequal(x, y) # 集合是否相等 相关文章: 2022-12-23 2022-12-23 2022-12-23 2022-12-23 2022-12-23 2022-12-23 2021-08-31 2022-12-23