字符串的连接及分割

 

        static void Main(string[] args)
        {
            string[] names = { "我", "是", "中", "国", "人" };
            Console.WriteLine(string.Concat(names)); //连接
            Console.WriteLine(string.Join(":", names)); //分割

            StringBuilder sbuilder = new StringBuilder();
            sbuilder.Append("123");
            sbuilder.Append("456");
            Console.WriteLine(sbuilder.ToString());
        }