问题描述

C#交叉数组出现未将对象引用设置到对象的实例 问题

代码其实很简单，创建一个C#窗体应用程序，运行时输入“妈妈和小女孩在动物园看熊猫”，但总是报错，却又解决不了。求解

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

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string[][] data = new string[25][];

        data[0] = new string[] { "妈妈", "麻麻", "老妈", "老麻", "母亲", "娘", "老娘", "阿姨", "女士", "女人", "姐姐", "婶婶", "女朋友", "老婆", "女性", "她" };

        data[1] = new string[] { "书房", "房间", "工作室", "家里", "工作间" };

        data[3] = new string[] { "工作", "学习", "看书" };

        data[4] = new string[] { "电话", "手机" };

        data[4] = new string[] { "书架", "书柜", "书橱", "书桌" };

        data[5] = new string[] { "翻阅", "查阅", "阅览", "查找", "查询", "查找", "查", "阅读" };

        data[6] = new string[] { "开灯", "照亮", "光明" };

        data[7] = new string[] { "水族馆", "海底世界", "大海", "水里", "水下", "水中", "海中", "深海" };

        data[8] = new string[] { "鲸", "鲸鱼" };

        data[9] = new string[] { "鲨", "鲨鱼", "大白鲨" };

        data[10] = new string[] { "水母" };

        data[11] = new string[] { "动物园", "动物世界" };

        data[12] = new string[] { "小女孩", "女孩", "女子", "女纸", "女生", "女森", "女儿", "妹妹" };

        data[13] = new string[] { "熊猫", "大熊猫" };

        data[14] = new string[] { "竹", "竹子" };

        data[15] = new string[] { "草", "草原", "草丛" };

        data[16] = new string[] { "马", "马匹", };

        data[17] = new string[] { "鱼", "鱼群" };

        data[18] = new string[] { "珊瑚", "珊瑚海", "珊瑚礁" };

        data[19] = new string[] { "章鱼", "乌贼" };

        data[20] = new string[] { "鼠标" };

        data[21] = new string[] { "台灯", "灯" };

        data[22] = new string[] { "熊" };

        data[23] = new string[] { "虎" };

        data[24] = new string[] { "狮子" };

         string[] resource;
        resource = new string[25];

        resource[0] = "x-010100";
        resource[1] = " x-010200";
        resource[2] = " x-010300";
        resource[3] = " x-010400";
        resource[4] = " x-010500";
        resource[5] = " x-010600";
        resource[6] = " x-010700";
        resource[7] = " x-010800";
        resource[8] = " x-010900";
        resource[9] = " x-020100";
        resource[10] = " x-020200";
        resource[11] = " x-020300";
        resource[12] = " x-020400";
        resource[13] = " x-020500";
        resource[14] = " x-020600";
        resource[15] = " x-020700";
        resource[16] = " x-030100";
        resource[17] = " x-030200";
        resource[18] = " x-030300";
        resource[19] = " x-030400";
        resource[20] = " x-030500";
        resource[21] = " x-030600";
        resource[22] = " x-030700";
        resource[23] = " x-040100";
        resource[24] = " x-040200";

        string information;
        information = Console.ReadLine();        //获取查询的字符串
        string statics;
        for (int i = 0; i < data.Length; i++)
        {
            for (int j = 0; j < data[i].Length; j++)
            {
                Regex reg = new Regex(data[i][j]);
                if (reg.IsMatch(information))
                {

                    statics = resource[i] + " ";
                    Console.WriteLine("你要的代码串为{0}", statics);

                }
            }
        }
        Console.ReadKey();
    }

}

}

解决方案

data[1] = new string[] { "书房", "房间", "工作室", "家里", "工作间" };
data[3] = new string[] { "工作", "学习", "看书" };
明显data[2]没有赋值，你循环的时候就null了

解决方案二：

楼上已解，初学者，凡事需谨慎