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如何從 Python 中的 API 的 JSON 中提取此數據?

如何從 Python 中的 API 的 JSON 中提取此數據?

精慕HU 2021-07-06 09:06:57
我正在使用這個 API,它返回一個 JSON 對象,如:[{"date":1538352000,"high":543.888,"low":520.89920292,"open":532.41173358,"close":532.71432488,"volume":792203.12027095,"quoteVolume":1486.26362316,"weightedAverage":533.01655771},{"date":1538438400,"high":553,"low":523.82274418,"open":535.06483,"close":533.15796645,"volume":1450475.8150522,"quoteVolume":2682.34573456,"weightedAverage":540.74901544},{"date":1538524800,"high":533.60658309,"low":506.22210308,"open":531.24219955,"close":517.00043658,"volume":945028.64730972,"quoteVolume":1827.1757435,"weightedAverage":517.20730787},{"date":1538611200,"high":533.00000001,"low":509.587,"open":516.82852718,"close":513.21852291,"volume":544265.53254745,"quoteVolume":1041.87603086,"weightedAverage":522.38991629},{"date":1538697600,"high":530,"low":512.7298752,"open":514.75817848,"close":521.2431,"volume":645308.06820112,"quoteVolume":1243.52076205,"weightedAverage":518.93630399},{"date":1538784000,"high":523.39414,"low":503.53380007,"open":523.39414,"close":511.77607278,"volume":473719.42567386,"quoteVolume":923.75069854,"weightedAverage":512.82172389},{"date":1538870400,"high":526.20546417,"low":505.26000001,"open":510.54452549,"close":522.92723267,"volume":402055.92168411,"quoteVolume":779.44882881,"weightedAverage":515.82080416},{"date":1538956800,"high":536.58563365,"low":518.82687001,"open":522.04549871,"close":530.855282,"volume":696173.37857725,"quoteVolume":1313.23574261,"weightedAverage":530.12064474},{"date":1539043200,"high":531.4304796,"low":516.90000001,"open":530.5,"close":521.07257237,"volume":296723.0286641,"quoteVolume":568.04170907,"weightedAverage":522.36134059},{"date":1539129600,"high":521.3392031,"low":510.00000001,"open":520.23843786,"close":516.04400658,"volume":372294.49209797,"quoteVolume":721.23650102,"weightedAverage":516.18919948},在 Python 中,我試圖獲得第二個最近的“高”。在這種情況下,如果您在單擊該鏈接時查看數據,結果是"521.3392031"我正在努力使它始終在最近的第二個中占據高位。
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?
至尊寶的傳說

TA貢獻1789條經驗 獲得超10個贊

如果列表中的字典總是按照它們看起來的時間順序排列,您可以簡單地執行以下操作:

print(poloniexjson[-2]['high'])

否則,您可以date先按鍵對字典進行排序:

print(sorted(poloniexjson, key=lambda d: d['date'])[-2]['high'])


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