从jQuery或JS中的json对象提取数据

var obj = [{    "disclaimer": "This data is collected from various providers and provided free of charge for informational purposes only, with no guarantee whatsoever of accuracy, validity, availability, or fitness for any purpose; use at your own risk. Other than that, have fun! More info: http://openexchangerates.org/terms/",    "license": "Data collected from various providers with public-facing APIs; copyright may apply; not for resale; no warranties given. Full license info: http://openexchangerates.org/license/",    "timestamp": 1339036116,    "base": "USD",    "rates": {        "EUR": 0.795767,        "GBP": 0.645895,        "JPY": 79.324997,        "USD": 1    }}];obj[0].rates.EUR; // output: 0.795767

要么

obj[0].rates['EUR']; output: //0.795767

演示

如果要在另一个变量中隔离费率并使用该变量，请尝试如下 *** 作：

var rates = obj[0].rates;

现在，

rates.EUR;rates.GBP;

等等。