Let's say I have following code:
List<string> numbers = new List<string> { "1", "2" };
List<string> numbers2 = new List<string> { "1", "2"};
if (numbers.Equals(numbers2))
{
}
Like you can see I have two lists with identical items. Is there a way to check if these two lists are equal by using one method?
SOLUTION:
Use SequenceEqual()
Thanks
使用Enumerable.SequenceEqual
,但首先对列表进行Sort
。
// if order does not matter
bool theSame = numbers.Except(numbers2).Count() == 0;
// if order is matter
var set = new HashSet<string>(numbers);
set.SymmetricExceptWith(numbers2);
bool theSame = set.Count == 0;
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