擅长:python、mysql、java
<p>如果价格随着价格的增加而增加或减少,那么如果你将价格的大小乘以10,你原来的10秒将乘以10,然后再乘以10(循环秒数),然后再乘以2,因为“列表(价格)”(顺便说一句,这肯定是在循环外进行的):</p>
<p>10秒*10*10*2=2000秒=33分钟</p>
<p>这种转换通常很昂贵。在</p>
<pre><code> prices_distincts = [{'hash_brand_artnum':1202},...,..]
prices = [{'hash_brand_artnum':1202,'price':12.077},...,...]
list_prices = list(prices)
for prices_distinct in prices_distincts:
for price in list_prices:
if prices_distinct['hash_brand_artnum'] == price['hash_brand_artnum']:
print price['hash_brand_artnum']
#print prices
del prices[0]
else:
continue
</code></pre>