标签:finally its port str can bsp loss code http
fh = open("mylist_wincsv.csv", ‘rt‘) reader = csv.reader(fh) data = list(reader) print "Data cells from CSV:" print data[0][1], data[1][1] print data[0][2], data[1][2] print data[0][3], data[1][3]
以上是书上的代码。可是无法实现。len(list(reader)) =0
查询官网知道。reader=csv.reader(fh)
Return a reader object which will iterate over lines in the given csvfile. csvfile can be any object which supports the iterator protocol and returns a string each time its __next__()
method is called — file objects and list objects are both suitable
所以尝试代码换下
import csv fh=open("mylist.csv",‘rt‘) a=[] try: reader=csv.reader(fh) for row in reader: a.append(row) except Exception as e: print("Exception is:",e) finally: fh.close() print(a[1][0])
这样就可以了
标签:finally its port str can bsp loss code http
原文地址:http://www.cnblogs.com/uxiuxi/p/7456389.html