C# Find() 和FindIndex()的用法：找出满足集合List<char>特定条件的字符。

Find()查找字符
FindIndex()查找索引

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace QueueSample
{
    class Program
    {
        static void Main(string[] args)
        {
            string str = "2022发大财";
            List<char> StringList = new List<char>();
            StringList = str.ToList();
            Console.WriteLine(str);
            Console.WriteLine(StringList[0].ToString());
            Console.WriteLine(StringList[0]);
 
            int a = StringList.Find(xxx => xxx.Equals( '发'));
            int b = StringList.FindIndex(xxx => xxx.Equals('发'));
            Console.ReadLine();
        }
    }
}