鉴于：
- List<Name> names = new List<Name>(); //list full of names
- public void RemoveName(string name) {
- List<Name> n = names.Where(x => x.UserName == name);;
- names.Remove(n);
- }
执行删除的Lambda语法是什么？
解决方法
- names.RemoveAll(x => x.UserName == name);
请注意,所有的lambda语法都提供了一个谓词< T>; lambda语法与使用lambda完成的任务完全无关.
或者参加一场比赛(见评论)：
- var found = names.Find(x => x.UserName == name);
- if(found != null) names.Remove(found);
要么：
- var index = names.FindIndex(x => x.UserName == name);
- if(index >= 0) names.RemoveAt(index);
