python3简单实现从csv⽂件中读取内容，并对内容进⾏分类统
计
新⼿python刚刚上路，在实际⼯作中遇到如题所⽰的问题，尝试使⽤python3简单实现如下，欢迎⾼⼿前来优化
import csv
#打开⽂件，⽤with打开可以不⽤去特意关闭file了，python3不⽀持file()打开⽂件，只能⽤open()
with open("dk0519_1.csv","r",encoding="utf-8") as csv_file:
#读取csv⽂件，返回的是迭代类型
read = ader(csv_file)
alist = []
bdict = []
cdict = []
tmp = []
python新手怎么兼职for i in read:
alist.append(i[0].split("\t"))
for a in alist[1:]:
print(a)
bdict.append((a[0].split("?")[0],a[1]))
for b in bdict:
num = int(b[1])
j = bdict.index(b) + 1
while j <= (len(bdict)-1) :
if b[0] not in tmp:
if b[0] == bdict[j][0]:
num += int(bdict[j][1])
j += 1
else:
j +=1
else:
j +=1
if b[0] not in tmp:
cdict.append((b[0],num))
else:
pass
tmp.append(b[0])
with open('re_dk0519_1.csv','w',encoding="utf-8") as write_csvfile:
writer = csv.writer(write_csvfile)
writer.writerows(cdict)

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