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计算文本文件中出现的单词数

计算文本文件中出现的单词数是一个常见的任务,可以使用编程语言实现。以下是一些常见的编程语言实现方法:

  1. Python
代码语言:python
代码运行次数:0
复制
def count_words(file_path):
    with open(file_path, 'r') as f:
        text = f.read()
    words = text.split()
    return len(words)

file_path = 'example.txt'
word_count = count_words(file_path)
print(f'The number of words in {file_path} is {word_count}')
  1. Java
代码语言:java
复制
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class WordCounter {
    public static void main(String[] args) {
        String filePath = "example.txt";
        int wordCount = countWords(filePath);
        System.out.printf("The number of words in %s is %d%n", filePath, wordCount);
    }

    public static int countWords(String filePath) {
        int wordCount = 0;
        try (BufferedReader br = new BufferedReader(new FileReader(filePath))) {
            String line;
            while ((line = br.readLine()) != null) {
                String[] words = line.split("\\s+");
                wordCount += words.length;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return wordCount;
    }
}
  1. JavaScript (Node.js)
代码语言:javascript
复制
const fs = require('fs');

function countWords(filePath) {
    const text = fs.readFileSync(filePath, 'utf8');
    const words = text.split(/\s+/);
    return words.length;
}

const filePath = 'example.txt';
const wordCount = countWords(filePath);
console.log(`The number of words in ${filePath} is ${wordCount}`);

以上是三种常见的编程语言实现方法,可以根据实际需要选择合适的语言进行实现。

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