python-----csv文件

import csv
def writeToCSV(fileName):
    outputFile = open(fileName,‘w‘,newline=‘‘)
    outputWriter = csv.writer(outputFile)
    #outputWriter = csv.writer(outputFile,delimiter=‘\t‘)
    outputWriter.writerow([‘2020/07/25‘,‘15:25:00‘,‘xt‘,‘1‘])
    outputWriter.writerow([‘2020/07/25‘,‘15:25:00‘,‘xt‘,‘2‘])
    outputWriter.writerow([‘2020/07/25‘,‘15:25:00‘,‘xt‘,‘3‘])
    outputWriter.writerow([‘2020/07/25‘,‘15:25:00‘,‘xt‘,‘4‘])
    outputFile.close()

outputFile = open(fileName,‘w‘,newline=‘‘)
#outputWriter = csv.writer(outputFile)
outputWriter = csv.writer(outputFile,delimiter=‘\t‘,lineterminator=‘\n\n‘)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import csv,os
import logging
#logging.basicConfig(filename=‘xx.txt‘,level=logging.DEBUG, format=‘ %(asctime)s - %(levelname)s - %(message)s‘)
logging.basicConfig(level=logging.DEBUG, format=‘ %(asctime)s - %(levelname)s - %(message)s‘)

def removeCSVHeader(baseDir):
    ‘‘‘
    将baseDir目录下(一级)的csv文件的文件头去掉保存在另一个目录中,不影响原文件
    ‘‘‘
    if not os.path.isdir(baseDir):
        logging.debug(baseDir+‘不是一个目录‘)
        return

    desDir = ‘headerRemoved‘ #保存在当前目录下的desDir子目录下
    os.makedirs(desDir,exist_ok=True)
    allFiles = os.listdir(baseDir)
    count = 0
    for csvFilename in allFiles:
        if (os.path.isfile(csvFilename) and csvFilename.endswith(‘.csv‘)):
            csvFileRObj = open(csvFilename)
            csvReader = csv.reader(csvFileRObj)

            csvFileWObj = open(os.path.join(desDir,csvFilename),‘w‘,newline=‘‘)
            csvWriter = csv.writer(csvFileWObj)

            for row in csvReader:
                if csvReader.line_num == 1:
                    continue
                csvWriter.writerow(row)
            csvFileRObj.close()
            csvFileWObj.close()
            count += 1
            logging.debug(csvFilename+‘转换完成‘)
        else:
            continue
    logging.debug(‘共‘+str(count)+‘个csv文件转换完成‘)


removeCSVHeader(‘.‘)