<pre><code>AuthorID CityArrival CountryArrival Departure CountryDeparture DateDeparture DateArrival
1922 Paris France New York UnitedState 2008-03-10 2001-02-02
1002 LosAngeles UnitedState California UnitedState 2008-03-10 2008-12-01
1901 Paris France Lagos Nigeria 2001-03-05 2001-02-02
1922 Paris France NewYork UnitedState 2011-02-03 2008-12-01
1002 Paris France California UnitedState 2003-03-04 2002-03-04
1099 Paris France Beijing China 2011-02-03 2009-02-04
1901 LosAngeles UnitedState Paris France 2001-03-05 2001-02-02
</code></pre>
<p>我想连接<code>CityArrival</code>和<code>CountryArrival</code>。在</p>
<pre><code>import csv
with open(path) as f:
reader = csv.DictReader(path)
for line in reader:
arrival = "{}, {}".format(line['CityArrival'], line['CountryArrival'])
</code></pre>