with open(filename, 'a', newline='') as csvfile: writer = csv.writer(csvfile) writer.writerow(data) # 示例用法 data = ['value1', 'value2', 'value3'] append_to_csv('file.csv', data) ` 以上代码将会把value1、value2和value3追加到名为file.csv的CSV文件中。 注意事项: - 确保CSV...
第一种:使用csv模块,写入到csv格式文件 # -*- coding: utf-8 -*- importcsvwith open("my.csv", "a", newline='') as f: writer = csv.writer(f) writer.writerow(["URL", "predict", "score"]) row = [['1', 1, 1], ['2', 2, 2], ['3', 3, 3]] for r in row: writer...
importcsv# 导入csv模块以处理CSV文件# 准备待追加的数据data_to_append=["John Doe",28,"Engineer"]# 这行代码准备了一组数据# 使用with语句以追加模式打开CSV文件withopen('data.csv',mode='a',newline='')asfile:# 以追加模式打开data.csv文件writer=csv.writer(file)# 创建CSV写入对象writer.writerow(...
defwrite_to_csv_file(data,row,col,array):iflen(data)<=row:data.append([""]*(col+1))else:data[row].extend([""]*(col-len(data[row])+1))fori,valueinenumerate(array):data[row][col+i]=valuewithopen(file_path,'w',newline='')asfile:writer=csv.writer(file)writer.writerows(data)...
sheet.append(data) workbook.save(result_path) print('*** 生成Excel文件 ' + result_path + ' *** \n') if __name__ == '__main__': write_excel_file("D:\core\\") 第三种,使用pandas,可以写入到csv或者xlsx格式文件 1 2 3 4 5 6 import pandas as pd result_list = [['1', 1...
books.append(book) data = pd.DataFrame(books) # 写入csv文件,'a+'是追加模式 try: ifnumber ==1: csv_headers = ['书名','作者'] data.to_csv(fileName, header=csv_headers, index=False, mode='a+', encoding='utf-8') else: data.to_csv('fileN...
books.append(book) data = pd.DataFrame(books) # 写入csv文件,'a+'是追加模式 try: if number == 1: csv_headers = ['书名', '作者'] data.to_csv(fileName, header=csv_headers, index=False, mode='a+', encoding='utf-8') else: data.to_csv('fileName, header=False, index=False, ...
1defappend_csv(path):2with open(path,"a+", newline='') as file:#处理csv读写时不同换行符 linux:\n windows:\r\n mac:\r3csv_file =csv.writer(file)4datas = [["hoojjack","boy"], ["hoojjack1","boy"]]5csv_file.writerows(datas) ...
books.append(book)data=pd.DataFrame(books)# 写入csv文件,'a+'是追加模式try:ifnumber==1:csv_headers=['书名','作者']data.to_csv(fileName,header=csv_headers,index=False,mode='a+',encoding='utf-8')else:data.to_csv('fileName, header=False, index=False, mode='a+', encoding='utf-8'...
books.append(book)data = pd.DataFrame(books)# 写入csv文件,'a+'是追加模式try:if number == 1:csv_headers = ['书名','作者']data.to_csv(fileName, header=csv_headers,index=False, mode='a+', encoding='utf-8')else:data.to_csv('fileName, header=False, index=False, mode='a+', ...