首尾路由使用

 1 import {CanActivate} from "@angular/router";
 2 
 3 export class PermissionGuard implements CanActivate {
 4   canActivate() {
 5     let hasPermission: boolean = Math.random() < 0.5;
 6     if (!hasPermission){
 7       console.log(‘用户没有权限‘);
 8     }
 9     return hasPermission;
10   }
11 
12 }