using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
namespace ConsoleEX1
{
class Program
{
static void Main(string[] args)
{
int Year,i,j,line;
string input, ID;
//FileInfo f;
StreamReader sr,sr2;
Console.WriteLine("請輸入要計算幾年:");
Year = int.Parse(Console.ReadLine()); // 文字轉數字
string[] strArray = new string[Year]; // 文字陣列
FileInfo[] fileArray = new FileInfo[Year];
string[][] IDs2 = new string[Year][];
j = 0;
for (i = 0; i < Year; i++)
{
string[] IDs = new string[299];
line = 0;
Console.WriteLine("請輸入第{0}個檔案的路徑:", i + 1);
input = Console.ReadLine();
strArray[i] = input;
fileArray[i] = new FileInfo(input);
try
{
sr = fileArray[i].OpenText();
}
catch(Exception ex)
{
Console.WriteLine(ex.Message);
Console.Read();
return;
}
// string[,] IDs = new string[];
while (sr.Peek() >= 0)
{
ID = sr.ReadLine().ToString().Substring(0, 4);
//Console.WriteLine("第{0}個檔案的第{1}行,值為{2}", i, line, ID);
// IDs2[i][line] = ID;
IDs[line] = ID;
line++;
}
IDs2[i] = IDs ;
Console.WriteLine("第{0}個檔案讀取完成!",i+1);
//sr2 = fileArray[i].OpenText();
sr.Close();
}
for (j = 0; j < Year; j++)
{
// ID = sr2.ReadLine().ToString().Substring(0, 4);
foreach (string s in IDs2[j])
{
if (s != null)
{
Console.WriteLine("第{0}個檔案的值為{1}", j, s);
}
}
}
Console.WriteLine("=============================================");
String[] result = IDs2[0].Intersect(IDs2[1]).ToArray();
StreamWriter sw;
Console.WriteLine("請輸入要輸出的路徑及名稱:");
string fName = Console.ReadLine();
FileInfo f = new FileInfo(fName);
sw = f.CreateText();
foreach (string s in result)
{
Console.WriteLine("交集為{0}",s);
sw.WriteLine(s);
}
sw.Flush();
sw.Close();
Console.Read();
}
}
}
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