运行vue项目报错，webpack-dev-server: Permission denied 无权限，npm run dev> tjjh5@1.0.0 dev /Users/log/Desktop/vue/tjjH5> webpack-dev-server --inline --progress --config build/webpack.dev.conf.jssh: /Users

MAC Android studio 运行 flutter项目的时候报错ERROR：Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.简单的方法 就是 直接删除 /Users/log/.gradle 下的.gradle 整个文件夹，就ok 了然后你就可以完美的运行了Running Gradle

ios 关联对象，也就是绑定对象，可以绑定任何东西//关联对象objc_setAssociatedObject(self, @selector(btnAction:), block, OBJC_ASSOCIATION_RETAIN_NONATOMIC);// self 关联的类，//key：要保证全局唯一，key与关联的对象是一一对应关系。必须全局唯一。通常用@selector(met...

- (void)willMoveToParentViewController:(UIViewController*)parent{[super willMoveToParentViewController:parent];}- (void)didMoveToParentViewController:(UIViewController*)parent{[super didMoveToParentVi

swift 代码为////ViewController.swift//IOS_to_Flutter////Created by log on 2021/1/20.//import UIKitimport Flutterclass ViewController: UIViewController,FlutterStreamHandler {//初始化的方法var channel:FlutterEve