擅长:python、mysql、java
<p>可以使用嵌套列表:</p>
<pre><code>s = [[{'timestamp': '2017-10-28T00:00:00.000Z', 'open': '0.051430', 'close': '0.051210', 'min': '0.050583', 'max': '0.051955', 'volume': '30953.184', 'volumeQuote': '1584.562468339'}, {'timestamp': '2017-10-29T00:00:00.000Z', 'open': '0.051191', 'close': '0.049403', 'min': '0.048843', 'max': '0.053978', 'volume': '42699.215', 'volumeQuote': '2190.567660769'}],[{'timestamp': '2017-10-28T00:00:00.000Z', 'open': '0.063390', 'close': '0.072991', 'min': '0.062544', 'max': '0.073524', 'volume': '199636.573', 'volumeQuote': '13427.870355674'}, {'timestamp': '2017-10-29T00:00:00.000Z', 'open': '0.072840', 'close': '0.073781', 'min': '0.069449', 'max': '0.090833', 'volume': '284448.623', 'volumeQuote': '21687.962221794'}]]
new_s = [[float(i['close']) for i in b] for b in s]
</code></pre>
<p>输出:</p>
<pre><code>[[0.051210, 0.049403], [0.072991, 0.073781]]
</code></pre>