如何利用pandas 将excel文件与csv文件进行相互转化

1.excel to csv

方法1：

import xlrd
import csv

def csv_from_excel():
    wb = xlrd.open_workbook('excel.xlsx')
    sh = wb.sheet_by_name('Sheet1')
    your_csv_file = open('your_csv_file.csv', 'w')
    wr = csv.writer(your_csv_file, quoting=csv.QUOTE_ALL)

    for rownum in range(sh.nrows):
        wr.writerow(sh.row_values(rownum))

    your_csv_file.close()

# runs the csv_from_excel function:
csv_from_excel()

方法 2：

import pandas as pd


def xlsx_to_csv_pd():
    data_xls = pd.read_excel('1.xlsx', index_col=0，sheet_name='sheet1')
    data_xls.to_csv('1.csv', encoding='utf-8')


if __name__ == '__main__':
    xlsx_to_csv_pd()

2.csv to excel

方法1：

import os
import glob
import csv
from xlsxwriter.workbook import Workbook


for csvfile in glob.glob(os.path.join('.', '*.csv')):
    workbook = Workbook(csvfile[:-4] + '.xlsx')
    worksheet = workbook.add_worksheet()
    with open(csvfile, 'rt', encoding='utf8') as f:
        reader = csv.reader(f)
        for r, row in enumerate(reader):
            for c, col in enumerate(row):
                worksheet.write(r, c, col)
    workbook.close()

方法2：

import pandas as pd

def csv_to_xlsx_pd():
    csv = pd.read_csv('1.csv', encoding='utf-8')
    csv.to_excel('1.xlsx', sheet_name='data')


if __name__ == '__main__':
    csv_to_xlsx_pd()