import csv def save_data(my_list): file_name = 'months.csv' with open(file_name, 'w') as myfile: wr = csv.writer(myfile, quoting=csv.QUOTE_NONE, delimiter=' ') for row in my_list: wr.writerow(map(str, row)) #example: save_data([["March", 1.2, 1.5], ["July", 2.3, ...
在Python中,如果需要将列表数据写入多个CSV文件,并且希望优化这个过程,可以按照以下步骤进行操作: 首先,导入所需的模块:import csv import os 定义一个函数,用于将列表数据写入CSV文件:def write_to_csv(data, filename): with open(filename, 'w', newline='') as file: writer = csv.writer(file) writer...
try: writer = csv.writer(csvFile) writer.writerow(name_attribute) for i in range(len(data)): writer.writerow(data[i]) finally: csvFile.close() 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 这种方法比较麻烦,按行将list中数据写入csv文件,但是不存在主键唯一的问题。
ifnotos.path.isfile(fileName): print("File does not exist!") returndict1 try: file=open(fileName,encoding="utf_8_sig") reader=csv.DictReader(file,fieldnames=tuple(labels)) i=1 fordict_tmpinreader: ifi==1:# 除去顶部 i=0 continue list_tmp=list(dict_tmp.values()) dict1[list_tmp[...
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, 1], ['2', 2, 2], ['3', 3, 3]] columns = ["URL", "predict", "score"] dt = pd.DataFrame(result_list, columns=columns) dt.to...
The‘CSV’module is part of the Python library, which has a method calledcsv.writer(),which allows you to write a list of data in a CSV file. For example, take the list ofdaily_tasksyou created in the above section. Import the‘csv’module as shown below. ...
1 Write multiple lists into csv. file in Python 1 Write list of list to csv in python 1 Writing multiple lists to csv Python 0 Python: write multiple lists to multiple rows in csv 2 Python: Write list of lists to CSV 1 Write multiple rows from several lists into a CSV 2 ...
import csv#python2可以用file替代openwith open("test.csv","w") as csvfile:writer = csv.writer(csvfile)#先写入columns_namewriter.writerow(["index","a_name","b_name"])#写入多行用writerowswriter.writerows([[0,1,3],[1,2,3],[2,3,4]])12345678910index a_name b_...
=csv.writer(new_file)'''先将列名写入'''writer.writerow(self.list_name)data=open(self.file_path)lines=data.readlines()forindexinrange(len(lines)):lines[index]=lines[index].strip('\n')lines[index]=lines[index].split(self.separator)writer.writerow(lines[index])data.close()new_file.close...
将数据写入csv文件,这里的数据都是List格式,并需要遍历。 1with open("Ex_info.csv","ab+") as csvfile:##“ ab+ ”去除空白行,又叫换行!2csvfile.write(codecs.BOM_UTF8)##存入表内的文字格式3writer = csv.writer(csvfile)#存入表时所使用的格式4writer.writerow(['表头','表头','表头','表头...