C#.NET FRAMEWORK .NET CORE .NET6 .NET8 判断是否Emoji

C#.NET FRAMEWORK .NET CORE .NET6 .NET8 判断是否Emoji

工具类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleThreadTimer
{
    public class EmojiUtil
    {
        /// <summary>
        /// 判断String中是否包含Emoji
        /// </summary>
        /// <param name="source"></param>
        /// <returns></returns>
        public static bool ContainsEmoji(string source)
        {
            if (string.IsNullOrWhiteSpace(source))
            {
                return false;
            }
            int len = source.Length;
            foreach (char item in source)
            {
                if (!IsEmojiCharacter(item))
                {

                    //如果不能匹配,则该字符是Emoji表情
                    return true;
                }
            }
            return false;
        }


        /// <summary>
        ///根据char判断是否是Emoji
        /// </summary>
        /// <param name="codePoint"></param>
        /// <returns></returns>
        private static bool IsEmojiCharacter(char codePoint)
        {
            return (codePoint == 0x0) || (codePoint == 0x9) || (codePoint == 0xA) || (codePoint == 0xD)
                             || ((codePoint >= 0x20) && (codePoint <= 0xD7FF))
                             || ((codePoint >= 0xE000) && (codePoint <= 0xFFFD))
                             || ((codePoint >= 0x10000) && (codePoint <= 0x10FFFF));
        }

        public static string RemoveEmoji(string source)
        {
            if (string.IsNullOrWhiteSpace(source))
            {
                return "1";
            }
            StringBuilder sc = new StringBuilder();
            int len = source.Length;
            foreach (char item in source)
            {
                if (!IsEmojiCharacter(item))
                {
                    continue; // IsEmojiCharacter 等于false，是Emoji
                }
                sc.Append(item);
            }
            string finalStr= sc.ToString();
            if (string.IsNullOrWhiteSpace(finalStr))
            {
                return "1";
            }
            return finalStr;
        }
    }
}

使用：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;

namespace ConsoleThreadTimer
{
    class Program
    {
        static void Main(string[] args)
        {
            string testString1 = "条码支付-pos-蜜雪冷饮-    新贝特中国汉堡

标签：CORE,codePoint,string,C#,System,using,NET,Emoji	

From： https://www.cnblogs.com/runliuv/p/18281158