擅长:python、mysql、java
<p>请试试这个:</p>
<p>def find U未结(库存):</p>
<pre><code>for k,v in stock.items():
if k == 'open':
print(stock[k])
elif isinstance(v, dict):
find_open(v)
</code></pre>
<h2>调用函数</h2>
<p>找到{'AAPL':{'2017-02-09':{'open':129.1019,'high':129.8815,'low':128.5821,'close':129.8569,'volume':28349859.0},'2017-02-10':{open':129.8962,'high':130.3669,'low':129.4941,'close':129.5628,'volume':20065458.0},'2017-02-13':{130.5042,'high':131.2299,'low':130.1806,'close':130.7101,“卷”:23035421.0}}})</p>