LINQ的Any方法

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mb5fe18e9fef50b 2016-04-12 16:50:00

文章标签 Write List IEnumerable Any EndsWith 文章分类 代码人生

返回布尔值，判断集合中是否有元素满足某一条件。

source code:

IEnumerable<string> str = new List<string> {
                "asdf","fgsdfg","tyuiu","ryury","ituyitu"
            };


            if (str.Any(x => x.EndsWith("iu")))
            {
                Write("true");
            }
            else
            {
                Write("false");
            }

View Code

或者你可以如下这样写：

source code:

IEnumerable<string> str = new List<string> {
                "asdf","fgsdfg","tyuiu","ryury","ituyitu"
            };


            //if (str.Any(x => x.EndsWith("iu")))
            //{
            //    Write("true");
            //}
            //else
            //{
            //    Write("false");
            //}

            bool blnResult = str.Any();

            blnResult = str.Any<string>((s) =>
            {
                return s.LastIndexOf("iu") > 0;
            });

            if (blnResult)
            {
                Write("true");
            }
            else
            {
                Write("false");
            }