cn.jpush.api.util.StringUtil.arrayToString C# (CSharp) Method

        public static String arrayToString(String[] values)
        {
            if (null == values) return "";

            StringBuilder buffer = new StringBuilder(values.Length);
            for (int i = 0; i < values.Length; i++)
            {
                buffer.Append(values[i]).Append(",");
            }
            if (buffer.Length > 0)
            {
                return buffer.ToString().Substring(0, buffer.Length - 1);
            }
            return "";
        }