static string AppendString(params string[] strList)

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本文展示了如何在C#中通过定义一个名为AppendString的静态方法，将多个字符串参数拼接成一个单一的字符串。通过使用StringBuilder类，这种方法在处理大量字符串拼接时比传统的foreach循环更高效。示例代码演示了如何调用此方法，并将多个字符串参数作为输入，最后输出拼接后的字符串。

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

namespace AppendStringDemo
{
    class Program
    {
        #region AppendString

        public static string AppendString(params string[] strList)
        {
            StringBuilder strBuilder = new StringBuilder();

            for (int i = 0; i < strList.Length; i++)
            {
                strBuilder = strBuilder.Append(strList[i]);
            }

return strBuilder.ToString();

}

#endregion

        static void Main(string[] args)
        {
            String str1 = "hello";
            String str2 = "world";
            String str3 = "hehe";
            String str4 = "ByeBye";
            String str1_4=AppendString(str1, str2, str3, str4);
            Console.WriteLine(str1_4);

String str_args = AppendString(args);
Console.WriteLine(str_args);

}
}
}

////////////////////////////////////////////////////////////////////////////////////////

AppendStringDemo.exe a b c d e f g
helloworldheheByeBye
abcdefg

///////////////////////////////////////////////////////////////////////

namespace AppendStringDemo
{
    internal class Program
    {
        public static string AppendString(params string[] strList)
        {
            StringBuilder strBuilder = new StringBuilder();
            for (int i = 0; i < strList.Length; i++)
            {
                strBuilder = strBuilder.Append(strList[i]);
            }
            return strBuilder.ToString();
        }

        private static void Main(string[] args)
        {
            string str = "hello";
            string str2 = "world";
            string str3 = "hehe";
            string str4 = "ByeBye";
            string str1_4 = Program.AppendString(new string[]
            {
                str,
                str2,
                str3,
                str4
            });
            Console.WriteLine(str1_4);
            string str_args = Program.AppendString(args);
            Console.WriteLine(str_args);
        }
    }
}