目录结构 router.js
import Vue from vue
import Router from vue-router
import Login from ./components/Login.vue
import Home from ./components/Home.vue
import Welcome from ./components/Welcome.vue
import Users from ./components/user/Users.vue
import Right fr…
目录结构 router.js
import Vue from vue
import Router from vue-router
import Login from ./components/Login.vue
import Home from ./components/Home.vue
import Welcome from ./components/Welcome.vue
import Users from ./components/user/Users.vue
import Right fr…
1、什么是多态性?什么是虚拟方法调用? 对象的多态性: Person p new xx(); 此时new的对象可以为多种形态,但需要是person类的子类。即父类的引用指向子类的对象。 虚拟方法调用: p.eat(); 该语句在编译时会认为时调用Person类中的…
目录结构 router.js
import Vue from vue
import Router from vue-router
import Login from ./components/Login.vue
import Home from ./components/Home.vue
import Welcome from ./components/Welcome.vue
import Users from ./components/user/Users.vue
import Right fr…
Subgradients 次梯度 S. Boyd and L. Vandenberghe Notes for EE364b, Stanford University, Winter 2006-07 April 13, 2008 1 定义 我们称一个矢量g∈Rn是函数f:Rn→R在x∈domf处的次梯度,如果对于所有的z∈domf满足: f(z)≥f(x)gT(z−x)(1)如果f是…