小编Ame*_*Ame的帖子

我是C#的新手和一般的编码,对我正在做的一项练习有疑问.我正在关注w3resource的练习,我遇到了一个挑战,我必须解决这个问题:"编写一个C#程序来检查给定的字符串是否包含1到3次'w'字符."

我的解决方案是:

    var theString = Console.ReadLine(); 
    var theArray = theString.ToCharArray();
    int betweenOneAndThree = 0;

        for (int i = 0; i < theArray.Length - 1; i++)
        {
            if (theArray[i] == 'w')
                betweenOneAndThree++;
        }
        Console.WriteLine(betweenOneAndThree >= 1 && betweenOneAndThree <= 3);
        Console.ReadLine();

这工作得很好,但我检查了他们的解决方案,它是这样的:

Console.Write("Input a string (contains at least one 'w' char) : ");
            string str = Console.ReadLine();
            var count = str.Count(s => s == 'w');
            Console.WriteLine("Test the string contains 'w' character  between 1 and 3 times: ");
            Console.WriteLine(count >= 1 && …