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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace ConsoleApplication1{    class Program    {        static void Main(string[] args)        {            int [][] Array_int = new int[10][];            //遍历行数            for (int i = 0; i < Array_int.Length; i++ )            {                //定义二维数组的列数                Array_int[i] = new int[i+1];                //遍历列数                for (int j = 0; j < Array_int[i].Length;j++ )                {                    //数组的前两行                    if(i <= 1)                    {                        Array_int[i][j] = 1;                        continue;                    }                    else                    {                        //行首或行尾                        if(j == 0 || j == Array_int[i].Length - 1)                        {                            Array_int[i][j] = 1;                            continue;                        }                        else                        {                            Array_int[i][j] = Array_int[i-1][j-1] + Array_int[i - 1][j];                        }                    }                }            }            //打印            for (int i = 0; i < Array_int.Length; i++)            {                for (int j = 0; j < Array_int[i].Length; j++)                {                    Console.Write("{0}\t", Array_int[i][j]);                }                Console.WriteLine();            }            Console.ReadLine();        }    }}

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