ev3dev python电源脚本

Question

ev3dev stretch版本2019年4月14日从这里下载

https://github.com/ev3dev/ev3dev-lang-python

运行这个python脚本来查看我的ev3dev上的电源发生了什么。除了注释掉的代码（报告为未知变量）之外还能工作

这应该是什么意思

#!/usr/bin/env python3
from ev3dev2.power import PowerSupply

power = PowerSupply()
print("amps",power.measured_amps)
print("volts",power.measured_volts)
print("type",power.type)
print("max_voltage",power.max_voltage)
print("min_voltage",power.min_voltage)
#print("measured voltage",measured_voltage)
#print("measured current",measured_current)

Answer 1

您没有定义measured_voltage和measured_current变量。试试这个：

print("measured voltage",power.measured_voltage)
print("measured current",power.measured_current)