写入csv文件源码：
1 #输出数据写入CSV文件
2 import csv
3 data = [
4 ("Mike", "male", 24),
5 ("Lee", "male", 26),
6 ("Joy", "female", 22)
7 ]
8
9 #Python3.4以后的新方式，解决空行问题
10 with open('d://write.csv', 'w', newline='') as csv_file:
11 csv_writer = csv.writer(csv_file)
12 for list in data:
13 print(list)
14 csv_writer.writerow(list)
读取csv文件源码：
1 #读取csv文件内容
2 import csv
3 list = []
4 reader = csv.reader(open("d://demo.csv"))
5 #csv中有三列数据，遍历读取时使用三个变量分别对应
6 for title, year, director in reader:
7 list.append(year)
8 print(title, "; ", year , "; ", director)
9
10 print(list)
读取运行结果：
