字段：datetime,globalactivepower,global_reactive_power,voltage,global_intensity,sub_metering_1,sub_metering_2,sub_metering_3,sub_metering_4
电力负荷数据集csv格式.7z
字段：datetime,globalactivepower,global_reactive_power,voltage,global_intensity,sub_metering_1,sub_metering_2,sub_metering_3,sub_metering_4