<viewclass="box2"><textclass="title">设备状态</text><viewclass="main"><viewv-for="(item,index) in operationList">//在这里<viewclass="demo"@click="this[item.click]()"><image:src="item.icon"></image><textstyle="font-size: 25rpx;">{{item.name}}</text></view></view></view></view>```
1.报错 Launching lib/main.dart on sdk gphone64 arm64 in debug mode... Running Gradle task assembleDebug... Exception in thread "main" java.net.ConnectException: Operation timed out at java.base/sun.nio.ch.Net.connect0(Native Method) at j…
一、决定系数是什么? scikit-learn库在进行回归任务的时候,进行模型评估时的score()方法,默认采取的是计算的是决定系数(Coefficient of Determination),通常表示为得分。这个值衡量了模型预测值与实际观测…