概要 IEC 61709是国际电工委员会（IEC）制定的一个标准，即“电子元器件 可靠性 失效率的基准条件和失效率转换的应力模型”。主要涉及电学元器件的可靠性，包括失效率的基准条件和失效率转换的应力模型。本文介绍IEC 61709第十七章： Switches and push-buttons的失效率预测模型。 1 元器件分类和基准温度 IEC 61709根据元器件的类型和40°C的元器件环境

题目描述 You are a fan of "Internet of Things"(IoT, 物联网), so you build a nice Internet of Lights and Switches in your huge mansion. Formally, there are n lights and m switches, each switch controls one

详情请转到原文：https://peter.sh/experiments/chromium-command-line-switches/ There are lots of command lines which can be used with the Google Chrome browser. Some change behavior of features, others are for

2.2 Creating and Using Switches with UISwitch 就是开关啦， 如果想相应操作用 [self.mySwitch addTarget:self action:@selector(switchIsChanged:) forControlEvents:UIControlEventValueChanged]; self里面实现(switch