c# 集合的交集、并集、差集

标签：

Intersect 交集，Except 差集，，Union 并集
int[] oldArray = { 1, 2, 3, 4, 5 }; int[] newArray = { 2, 4, 5, 7, 8, 9 }; var jiaoJi = oldArray.Intersect(newArray).ToList();//2,4,5交集 var oldChaJi = oldArray.Except(newArray).ToList();//1,3差集 var newChaJi = newArray.Except(oldArray).ToList();//7,8,9差集 var bingJi = oldArray.Union(newArray).ToList();//1,2,3,4,5,7,8,9并集

标签：