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最近需要各種轉(zhuǎn)格式，這里對相關代碼作一個記錄，方便日后查詢。

xlsx文件轉(zhuǎn)csv文件

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									import xlrd

									import csv

									def xlsx_to_csv():

									  workbook = xlrd.open_workbook('1.xlsx')

									  table = workbook.sheet_by_index(0)

									  with codecs.open('1.csv', 'w', encoding='utf-8') as f:

									    write = csv.writer(f)

									    for row_num in range(table.nrows):

									      row_value = table.row_values(row_num)

									      write.writerow(row_value)

									if __name__ == '__main__':

									  xlsx_to_csv()

在2個文件之間轉(zhuǎn)換，需要注意一個文件的字符轉(zhuǎn)碼問題

使用第三方庫pandas將xlsx文件轉(zhuǎn)csv文件

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									import pandas as pd

									def xlsx_to_csv_pd():

									  data_xls = pd.read_excel('1.xlsx', index_col=0)

									  data_xls.to_csv('1.csv', encoding='utf-8')

									if __name__ == '__main__':

									  xlsx_to_csv_pd()

csv文件轉(zhuǎn)換成xlsx文件

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									import csv

									import xlwt

									def csv_to_xlsx():

									  with open('1.csv', 'r', encoding='utf-8') as f:

									    read = csv.reader(f)

									    workbook = xlwt.Workbook()

									    sheet = workbook.add_sheet('data') # 創(chuàng)建一個sheet表格

									    l = 0

									    for line in read:

									      print(line)

									      r = 0

									      for i in line:

									        print(i)

									        sheet.write(l, r, i) # 一個一個將單元格數(shù)據(jù)寫入

									        r = r + 1

									      l = l + 1

									    workbook.save('1.xlsx') # 保存Excel

									if __name__ == '__main__':

									  csv_to_xlsx()

使用pandas將csv文件轉(zhuǎn)成xlsx文件

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									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()

xlsx文件轉(zhuǎn)json文件

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									from collections import OrderedDict

									import json

									import codecs

									wb = xlrd.open_workbook('positive_previous.xlsx')

									convert_list = []

									sh = wb.sheet_by_index(0)

									title = sh.row_values(0)

									for rownum in range(1, sh.nrows):

									  rowvalue = sh.row_values(rownum)

									  single = OrderedDict()

									  for colnum in range(0, len(rowvalue)):

									    print(title[colnum], rowvalue[colnum])

									    single[title[colnum]] = rowvalue[colnum]

									  convert_list.append(single)

									j = json.dumps(convert_list)

									with codecs.open('positive_previous.json', "w", "utf-8") as f:

									  f.write(j)

csv文件轉(zhuǎn)化為json文件

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									# 下面的工具可以方便的將CSV格式文件轉(zhuǎn)換成json文件格式

									import sys, json

									tip = """

									請確保：

									1. CSV格式是UTF-8

									2. CSV第一行是鍵值

									用法：

									python csv2json.py foobar.csv

									其中foobar.csv是需要轉(zhuǎn)換的源數(shù)據(jù)文件

									運行環(huán)境：

									Python 3.4.3

									日期：

									2015年12月29日

									"""

									print(tip)

									# 獲取輸入數(shù)據(jù)

									input_file = sys.argv[1]

									lines = open(input_file, "r", encoding="utf_8_sig").readlines()

									lines = [line.strip() for line in lines]

									# 獲取鍵值

									keys = lines[0].split(',')

									line_num = 1

									total_lines = len(lines)

									parsed_datas = []

									while line_num < total_lines:

									    values = lines[line_num].split(",")

									    parsed_datas.append(dict(zip(keys, values)))

									    line_num = line_num + 1

									json_str = json.dumps(parsed_datas, ensure_ascii=False, indent=4)

									output_file = input_file.replace("csv", "json")

									# write to the file

									f = open(output_file, "w", encoding="utf-8")

									f.write(json_str)

									f.close()

									print("解析結(jié)束！")