检查列表<；字符串>；包含除指定之外的任何值

本文关键字：任何值 包含 lt 列表 字符串 gt 检查 | 更新日期: 2023-09-27 18:21:44

我需要检查List是否包含指定的3之外的任何值。

示例：我有这个var sourceList = new List<string>("A", "B", "C", "D", "E");，我想检查列表是否包含除"E"、"F"、"G"之外的任何值。只有Bool是可以的，sourceList是用户可能选择的预定义列表的动态子集。我的BESIDES列表将是静态的。

谢谢，

检查列表<；字符串>；包含除指定之外的任何值

var flag = sourceList.Except(new[] { "E", "F", "G" }).Any();

使用LINQ:

bool contains = sourceList.Any(t => (t != "E" && t != "F" && t != "G"));

使用Except和Any扩展来实现您的目标：

var sourceList = new List<string>{"A", "B", "C", "D", "E"};
var c = sourceList.Except( new List<string>{ "E", "F", "G"}).Any();

var sourceList = new List<string>("A", "B", "C", "D", "E");
var checkList = new List<string>("E", "F", "G");
bool anyBesides = sourceList.Except(checkList).Any();

不太希望使用Except创建新列表，并且当前的Any解决方案不能用于不同的字母组合。

CCD_ 7和CCD_。

var sourceList = new List<string> { "A", "B", "C", "D", "E" };
var except = new[] { "E", "F", "G" };
var containsExcept = sourceList.Any(x => except.Contains(x));

var sourceList = new List<string>{"A", "B", "C", "D", "E"};
 bool res =sourceList.SequenceEqual(new string[] { "A", "B", "C"});

也不要忘记，没有这样的构造函数你已经写：

var sourceList = new List<string>("A", "B", "C", "D", "E");

应该是：

var sourceList = new List<string>{"A", "B", "C", "D", "E"};

var sourceList = new List<string>{"A", "B", "C", "D", "E"};
var besidesList = new List<string>{"E", "F", "G"};  
var anyBesides = sourceList.Any(t => !besidesList.Contains(t));
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