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54 lines
1.9 KiB
C#
54 lines
1.9 KiB
C#
using System;
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using System.IO;
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class WriteTextFile
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{
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static void Main()
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{
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string fileName = @"mytest.txt";
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string[] ArrLines;
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string str;
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int n,i;
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Console.Write("\n\n Create and write some line of text which does not contain a given string in a line :\n");
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Console.Write("------------------------------------------------------------------------------------------\n");
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if (File.Exists(fileName))
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{
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File.Delete(fileName);
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}
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Console.Write(" Input the string to ignore the line : ");
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str = Console.ReadLine();
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Console.Write(" Input number of lines to write in the file : ");
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n= Convert.ToInt32(Console.ReadLine());
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ArrLines=new string[n];
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Console.Write(" Input {0} strings below :\n",n);
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for(i=0; i<n; i++)
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{
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Console.Write(" Input line {0} : ",i+1);
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ArrLines[i] = Console.ReadLine();
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}
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using (System.IO.StreamWriter file =
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new System.IO.StreamWriter(@"mytest.txt"))
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{
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foreach (string line in ArrLines)
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{
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if (!line.Contains(str)) // write the line to the file If it doesn't contain the string in str
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{
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file.WriteLine(line);
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}
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}
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}
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using (StreamReader sr = File.OpenText(fileName))
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{
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string s = "";
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Console.Write("\n The line has ignored which contain the string '{0}'. \n",str);
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Console.Write("\n The content of the file is :\n",n);
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Console.Write("----------------------------------\n");
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while ((s = sr.ReadLine()) != null)
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{
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Console.WriteLine(" {0} ",s);
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}
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Console.WriteLine();
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}
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}
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} |