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<p>我有一个项目列表,我想返回一个最大的严重性,即输入可以是“雨|冰|风”</p>
<p>可能的输入可能是(按严重程度排序):晴天、多云、刮风、下雨、结冰</p>
<p>有了上面的输入,我想只输出冰,因为它是最严重的</p>
<p>我试过这样的方法:</p>
<pre><code>dictionary1 = {'sunny': 0, 'cloudy': 1, 'windy': 1, 'rainy': 2, 'icy': 3}
with open(Conditions_csv, 'wb') as fw:
writer = csv.writer(fw, delimiter=',')
header = ['Date','latitude','longitude','Condition']
writer.writerow(header)
for row in cur.fetchall():
conditions = row[3].split("|")
for item in sorted(dictionary1.keys(),reverse= True):
name = dictionary1[item]
if name in conditions:
print row
print name
writer.writerow(row + name)
db.close()
</code></pre>
<p>我的上述输出将是:</p>
<pre><code>(18/12/2017,45,-85, Rainy|Icy|Windy)
Icy
(18/12/2017,45,-85, Rainy|Icy|Windy)
Rainy
(18/12/2017,45,-85, Rainy|Icy|Windy)
Windy
(18/12/2017,47,-88, Rainy|Windy)
Rainy
(18/12/2017,47,-88, Rainy|Windy)
Windy
(18/12/2017,40,-84, Icy|Windy)
Icy
(18/12/2017,40,-84, Icy|Windy)
Windy
</code></pre>
<p>我只想说:</p>
<pre><code>(18/12/2017,45,-85, Rainy|Icy|Windy)
Icy
(18/12/2017,47,-88, Rainy|Windy)
Rainy
(18/12/2017,40,-84, Icy|Windy)
Icy
</code></pre>