擅长:python、mysql、java
<p>你有一本字典。使用键访问值</p>
<p><strong>例如:</strong></p>
<pre><code>json_object = {"channel":{"id":293367,"name":"Weather Station","description":"My first attempt to build a weather station based on an ESP8266 and some common sensors.","latitude":"51.473509","longitude":"7.355569","field1":"humidity","field2":"pressure","field3":"lux","field4":"rssi","field5":"temp","field6":"uv","field7":"voltage","field8":"radiation","created_at":"2017-06-25T07:35:37Z","updated_at":"2018-08-04T12:11:22Z","elevation":"121","last_entry_id":1812},"feeds":
[{"created_at":"2018-10-21T18:11:45Z","entry_id":1713,"field2":"1025.62"},
{"created_at":"2018-10-21T18:12:05Z","entry_id":1714,"field2":"1025.58"},
{"created_at":"2018-10-21T18:12:25Z","entry_id":1715,"field2":"1025.56"},
{"created_at":"2018-10-21T18:12:45Z","entry_id":1716,"field2":"1025.65"},
{"created_at":"2018-10-21T18:13:05Z","entry_id":1717,"field2":"1025.58"},
{"created_at":"2018-10-21T18:13:25Z","entry_id":1718,"field2":"1025.63"}]}
for entry in json_object["feeds"]:
print entry["field2"]
</code></pre>
<p><strong>输出:</strong></p>
^{pr2}$