Question

python中 打开csv文件

代码：import csv

reader = csv.reader(open('E:\BigData\tianchi_mobile_recommend_train_user.csv','r+'))
for row in reader:
print row
报错：
Traceback (most recent call last):
File "E:\BigData\user.py", line 3, in <module>
reader = csv.reader(open('E:\BigData\tianchi_mobile_recommend_train_user.csv','r+'))
IOError: [Errno 22] invalid mode ('r+') or filename: 'E:\\BigData\tianchi_mobile_recommend_train_user.csv'

Answer 1

reader = csv.reader(open('E:/BigData/tianchi_mobile_recommend_train_user.csv','r+'))
\t是制表符，直接用/代表\避免 出现 "\t" "\n"这样的转 义符

追问

reader = csv.reader(open(r'E:\BigData\tianchi_mobile_recommend_train_user.csv','r'))就可以了