路由:
调用路由模块
import { NgModule } from '@angular/core'; import { RouterModule, Routes } from '@angular/router';
设置子路由
{ path: 'home', component: HomeComponent ,children:childRoutes},
const childRoutes : Routes=[ { path: '', redirectTo: 'index', pathMatch: 'full' }, { path: 'index', component: IndexComponent } ]
在需要跳路由的标签加上属性 routerLink="home"
在需要加载路由的界面添加标签 <router-outlet></router-outlet>
路由跳转 (这个跳转的方法,资源不会调用)
this.router.navigateByUrl("/home");
激活(路由链接为活动状态)时绑定一个css样式
routerLinkActive="active"
模块:
在ts中模块的基本结构如下:
import { Component } from '@angular/core'; @Component({ selector: 'app-home', templateUrl: './home.component.html' }) export class HomeComponent { }
import { Component, OnInit } from '@angular/core'; @Component({ selector: 'my-home', templateUrl: './home.component.html' }) export class HomeComponent implements OnInit{ ngOnInit(): void { } }
路径:
获取路径(/home/index)
path:Location; constructor(location: Location) { this.path = location; }
调用接口
return this.http.get('http://localhost:81/angular.php') .map(response => response.json()).subscribe(data=>{ this.res = data.res;
})
显示:
相当于遍历数组
*ngFor="let lang of langs"
条件判断
*ngIf="langs.length>3"
添加点击事件
(click)="onClickMe()"
通过box模块来绑定当前元素,然后获取value值
#box (keyup)="onKey2(box.value)"
绑定回车事件
#box (keyup.enter)="value3=box.value"
绑定失焦事件
(blur)="value4=box.value"