如何在文本文档中找关键字

发布网友 发布时间：2022-04-24 02:45

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共2个回答

热心网友 时间：2023-10-22 18:17

C# 复制代码
using System;
using System.IO;

class Test
{
public static void Main()
{
try
{
// Create an instance of StreamReader to read from a file.
// The using statement also closes the StreamReader.
using (StreamReader sr = new StreamReader("TestFile.txt"))
{
String line;
// Read and display lines from the file until the end of
// the file is reached.
while ((line = sr.ReadLine()) != null)
{
int pos = line.IndexOf("你要找的字符串") ;
if(pos>=0)
Console.WriteLine(pos);
}
}
}
catch (Exception e)
{
// Let the user know what went wrong.
Console.WriteLine("The file could not be read:");
Console.WriteLine(e.Message);
}
}
}

热心网友 时间：2023-10-22 18:18

Ctrl+F

热心网友 时间：2023-10-22 18:17

C# 复制代码
using System;
using System.IO;

class Test
{
public static void Main()
{
try
{
// Create an instance of StreamReader to read from a file.
// The using statement also closes the StreamReader.
using (StreamReader sr = new StreamReader("TestFile.txt"))
{
String line;
// Read and display lines from the file until the end of
// the file is reached.
while ((line = sr.ReadLine()) != null)
{
int pos = line.IndexOf("你要找的字符串") ;
if(pos>=0)
Console.WriteLine(pos);
}
}
}
catch (Exception e)
{
// Let the user know what went wrong.
Console.WriteLine("The file could not be read:");
Console.WriteLine(e.Message);
}
}
}

热心网友 时间：2023-10-22 18:18

Ctrl+F

热心网友 时间：2023-10-22 18:17

C# 复制代码
using System;
using System.IO;

class Test
{
public static void Main()
{
try
{
// Create an instance of StreamReader to read from a file.
// The using statement also closes the StreamReader.
using (StreamReader sr = new StreamReader("TestFile.txt"))
{
String line;
// Read and display lines from the file until the end of
// the file is reached.
while ((line = sr.ReadLine()) != null)
{
int pos = line.IndexOf("你要找的字符串") ;
if(pos>=0)
Console.WriteLine(pos);
}
}
}
catch (Exception e)
{
// Let the user know what went wrong.
Console.WriteLine("The file could not be read:");
Console.WriteLine(e.Message);
}
}
}

热心网友 时间：2023-10-22 18:18

Ctrl+F

热心网友 时间：2023-10-22 18:17

C# 复制代码
using System;
using System.IO;

class Test
{
public static void Main()
{
try
{
// Create an instance of StreamReader to read from a file.
// The using statement also closes the StreamReader.
using (StreamReader sr = new StreamReader("TestFile.txt"))
{
String line;
// Read and display lines from the file until the end of
// the file is reached.
while ((line = sr.ReadLine()) != null)
{
int pos = line.IndexOf("你要找的字符串") ;
if(pos>=0)
Console.WriteLine(pos);
}
}
}
catch (Exception e)
{
// Let the user know what went wrong.
Console.WriteLine("The file could not be read:");
Console.WriteLine(e.Message);
}
}
}

热心网友 时间：2023-10-22 18:18

Ctrl+F