The code shown in Listing 5 reads from the data stored in the readings table and presents the temperature and light data in separate charts.
清单5中所示的代码可以读取存储在读数表中的数据，然后以不同的图表显示温度和光数据。
The code shown in Listing 5 reads from the data stored in the readings table and presents the temperature and light data in separate charts.
清单5中所示的代码可以读取存储在读数表中的数据，然后以不同的图表显示温度和光数据。
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