找不到空CSV值的空令牌的值

import pandas as pd

# 读取CSV文件
df = pd.read_csv('your_file.csv')

# 检查空值
print(df.isnull().sum())

# 填充空值（例如用0填充）
df.fillna(0, inplace=True)

# 或者用特定值替换空值
df.fillna('Unknown', inplace=True)

# 保存处理后的CSV文件
df.to_csv('processed_file.csv', index=False)

const csv = require('csv-parser');
const fs = require('fs');

const results = [];

fs.createReadStream('your_file.csv')
  .pipe(csv())
  .on('data', (data) => {
    // 处理空值
    for (let key in data) {
      if (data[key] === '') {
        data[key] = 'Unknown'; // 或者用其他值替换空值
      }
    }
    results.push(data);
  })
  .on('end', () => {
    console.log(results);
    // 将处理后的数据写入新的CSV文件
    const csvWriter = require('csv-writer').createObjectCsvWriter({
      path: 'processed_file.csv',
      header: Object.keys(results[0]).map(key => ({ id: key, title: key }))
    });
    csvWriter.writeRecords(results).then(() => {
      console.log('The CSV file was written successfully');
    });
  });