我们经常会用到linq 来查询 一个数组中和另一个数组中相同的项, 这个时候就会用到IEqualityComparer接口. public class StudyInfoModel { public string InstanceUID = ""; } public class StudyCompare : IEqualityComparer<StudyInfoModel> { // StudyInfoModel a…
1.调用: UserList = UserList.ToList().Intersect(userIDList, new MyUserComparer()).AsQueryable(); 2.须要重写的方法: public class MyUserComparer : IEqualityComparer<MyUser> { public bool Equals(MyUser x, MyUser y) { //throw new NotImplementedException(); return…
求两个列表的差集 >>> a = [1,2,3] >>> b=[1,2] >>> #################################### >>> #两个列表的差集 >>> ret = [] >>> for i in a: if i not in b: ret.append(i) >>> ret [3] >>> #两个列表的差集2 >>…
我是用hashset<T>来实现的 具体如代码所示 using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace JiaoJi { class Program { static void Main(string[] args) { ]{,,,,,,,}; ]{,,,,}; HashSet<int> hashset=new HashSet<int&g…
Given two lists of closed intervals, each list of intervals is pairwise disjoint and in sorted order. Return the intersection of these two interval lists. (Formally, a closed interval [a, b] (with a <= b) denotes the set of real numbers x with a <=…