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python Csv写入指定列

具体如下: # _*_ coding:utf-8 _*_ #xiaohei.python.seo.call.me:) #win+python2.7.x import csv csvfile = file('csvtest.csv', 'wb') writer = csv.writer(csvfile) writer.writerow(['id', 'url', 'keywords']) data = [

# -*- coding: utf8 -*- import csv l = [['1', 'Wonderful Spam'],['2', 'Lovely Spam']] #模拟数据写入一个csv with open('eggs.csv', 'w', newline='') as csvfile: spamwriter = csv.writer(csvfile, delimiter=',',quotechar='"', quoting=...

具体如下: # _*_ coding:utf-8 _*_ #xiaohei.python.seo.call.me:) #win+python2.7.x import csv csvfile = file('csvtest.csv', 'wb') writer = csv.writer(csvfile) writer.writerow(['id', 'url', 'keywords']) data = [ ('1', 'http://www....

import csvwith open('test.csv') as csvfile: rows = csv.reader(csvfile) with open('test1.csv','w', newline='') as f: writer = csv.writer(f) for row in rows: row.append(row[len(row)-1]) writer.writerow(row)这是一个把最后一列重复...

# -*- coding: utf8 -*-import csvl = [['1', 'Wonderful Spam'],['2', 'Lovely Spam']]#模拟数据写入一个csvwith open('eggs.csv', 'w', newline='') as csvfile: spamwriter = csv.writer(csvfile, delimiter=',', quotechar='"', quoting=csv...

如果问题很单纯,甚至连 csv 都可以不使用: with open('old.csv') as reader, open('new.csv', 'w') as writer: for line in reader: items = line.strip().split() print(' '.join(items[:2]+items[3:]), file=writer) 写个 general 的: import...

如果是在末尾添加,直接读取csv文件的每一行,对应添加列的每一项即可。 如果想在中间插入,先读取每一行,将其转成列表,用列表的insert函数在指定列添加。

# -*- coding: utf8 -*-import csvl = [['1', 'Wonderful Spam'],['2', 'Lovely Spam']]#模拟数据写入一个csvwith open('eggs.csv', 'w', newline='') as csvfile: spamwriter = csv.writer(csvfile, delimiter=',', quotechar='"', quoting=csv...

csv是Comma-Separated Values的缩写,是用文本文件形式储存的表格数据,比如如下的表格: 就可以存储为csv文件,文件内容是: No.,Name,Age,Score 1,mayi,18,99 2,jack,21,89 3,tom,25,95 4,rain,19,80 假设上述csv文件保存为"test.csv" 1.读文...

具体如下: # _*_ coding:utf-8 _*_ #xiaohei.python.seo.call.me:) #win+python2.7.x import csv csvfile = file('csvtest.csv', 'wb') writer = csv.writer(csvfile) writer.writerow(['id', 'url', 'keywords']) data = [

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