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<p>我试图从PYTHON中的各种加密货币交换中调用API。在</p>
<p>这是由以下URL(<a href="https://api.mintpal.com/v1/market/stats/uro/BTC" rel="nofollow">https://api.mintpal.com/v1/market/stats/uro/BTC</a>)返回的API JSON字符串</p>
<pre><code>[
{
"market_id": "210",
"coin": "Uro",
"code": "URO",
"exchange": "BTC",
"last_price": "0.00399700",
"yesterday_price": "0.00353011",
"change": "+13.23",
"24hhigh": "0.00450000",
"24hlow": "0.00353010",
"24hvol": "6.561",
"top_bid": "0.00374001",
"top_ask": "0.00399700"
}
]
</code></pre>
<p>我有兴趣得到“最后价格”,我打印它使用以下代码。在</p>
^{pr2}$
<p>到目前为止还不错。但是,我尝试使用以下URL(<a href="https://bittrex.com/api/v1.1/public/getmarketsummary?market=btc-uro" rel="nofollow">https://bittrex.com/api/v1.1/public/getmarketsummary?market=btc-uro</a>)对bitrex交换执行相同的操作</p>
<p>返回的JSON字符串如下所示:</p>
<pre><code>{
"success": true,
"message": "",
"result": [
{
"MarketName": "BTC-URO",
"High": 0.00479981,
"Low": 0.00353505,
"Volume": 30375.93454693,
"Last": 0.00391656,
"BaseVolume": 120.61056568,
"TimeStamp": "2014-07-29T17:54:35.897",
"Bid": 0.00393012,
"Ask": 0.00395967,
"OpenBuyOrders": 182,
"OpenSellOrders": 182,
"PrevDay": 0.00367999,
"Created": "2014-05-15T05:46:29.917"
}
]
}
</code></pre>
<p>这个JSON字符串的结构与前面的不同,我不能使用我的第一个代码来获取值“LAST”。不过,我可以通过打印“stringindex”来解决这个问题,但这不是一个解决方案。在</p>
<pre><code>url = 'https://bittrex.com/api/v1.1/public/getticker?market=btc-uro'
json_obj = urllib2.urlopen(url)
URO_data = json.load(json_obj)
URO_String = str(URO_data)
last_price = URO_String[79:89]
URO_LastPrice = float(last_price)
print last_price
</code></pre>
<p>我想在第二个JSON字符串中获取“Last”的值。在</p>