📜  计算重复字符的数量 - C# 代码示例

📅  最后修改于: 2022-03-11 14:49:14.639000             🧑  作者: Mango

代码示例1
using System.Linq;

public class Program
{
    public static int DuplicateCount(string str)
    {
            return str.ToCharArray()
                .GroupBy(x => x)
                .Where(x => x.Count() > 1)
                .Count();
    }
}