csv文件的读取：
1）通过列表下标读取：
import csv
with open('stock.csv','r') as fp:
# reader是个迭代器
reader = csv.reader(fp)
next(reader)
for i in reader:
# print(i)
name = i[3]
volumn = i[-1]
print({'name':name,'volumn':volumn})
import csv
with o
