echo 255 > /sys/devices/platform/backlight/backlight/backlight/brightness//调整屏幕亮度echo 4 > /sys/class/graphics/fb0/blank//息屏echo 0 > /sys/class/graphics/fb0/blank//亮屏

一、类的定义和使用#!/usr/bin/python#coding=utf-8#定义类class Stock:def __init__(self, stockCode, price):self.stockCode, self.price = stockCode, pricedef get_stockCode(self):return self.stockCodedef set_stockCode(

一、通过try...execpt从句处理异常#!/usr/bin/python#coding=utf-8stockInfoList = ["12580", "65535"]try:stockInfoList.remove("123456")except:print("can't remove from list")try:2 + "error"#函数参数类型不正确时会触发except TypeEr