python3 csv的读写

写入csv文件（注意需要有E:\pyProjects这个文件夹）空了一行

import csv

items = [['1','LawnMower','Small Hover mower','Fred','$150','Excellent','2012-01-05'],['2','LawnMower','Ride-on mower','Mike','$370','Fair','2012-04-01'],['3','Bike','BMX bike','Joe','$200','Good','2013-03-22'],['4','Drill','Heavy duty hammer','Rob','$100','Good','2013-10-28'],['5','Scarifier','Quality, stainless steel','Anne','$200','2013-09-14'],['6','Sprinkler','Cheap but effective','Fred','$80','2014-01-06']]

with open('E:\pyProjects\csvTest-data2.csv','w',newline='') as data:
    writer = csv.writer(data)
    for item in items:
        writer.writerow(item)

或者以默认方式逐行

import csv

items = [['1','LawnMower','Small Hover mower','Fred','$150','Excellent','2012-01-05'],['2','LawnMower','Ride-on mower','Mike','$370','Fair','2012-04-01'],['3','Bike','BMX bike','Joe','$200','Good','2013-03-22'],['4','Drill','Heavy duty hammer','Rob','$100','Good','2013-10-28'],['5','Scarifier','Quality, stainless steel','Anne','$200','2013-09-14'],['6','Sprinkler','Cheap but effective','Fred','$80','2014-01-06']]

with open('E:\pyProjects\csvTest-data.csv','w') as data:
    writer = csv.writer(data)
    for item in items:
        writer.writerow(item)

读取csv文件

import csv

with open('E:\pyProjects\csvTest-data.csv') as f:
    datareader = csv.reader(f);
    print (list(datareader))

import csv

with open('E:\pyProjects\csvTest-data.csv') as f:
    datareader = csv.reader(f);
    #print (list(datareader))
    for line in datareader:
        print (line)

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