问路由器中的链路链路不变

EN

<mat-sidenav-container class="sidenav-container">
    <mat-sidenav #drawer class="sidenav" fixedInViewport
        [attr.role]="(isHandset$ | async) ? 'dialog' : 'navigation'"
        [mode]="(isHandset$ | async) ? 'side' : 'side'"
        [opened]="(isHandset$ | async) === false">
      <mat-toolbar>Cust_Corp</mat-toolbar>
      <div class="dashboard">
        <div class="container">
          <p><a routerLink="/cust-toolnav">Home</a></p>
          <p><a routerLink="/cust-regform">Create a customer</a></p>
          <p><a href="#">Display a customer</a></p> 
        </div>
        <router-outlet></router-outlet>
      </div>
    </mat-sidenav>

    <mat-sidenav-content>
        <app-cust-toolnav [title]="title" [burgerMenu]="isHandset$ | async" (burgerClick)="drawer.toggle()"></app-cust-toolnav>
    </mat-sidenav-content>
    <mat-sidenav-content>
        <app-cust-regform [title]="title" [burgerMenu]="isHandset$ | async" (burgerClick)="drawer.toggle()"></app-cust-regform>
    </mat-sidenav-content>  

</mat-sidenav-container>

          <p><a routerLink="/cust-toolnav">Home</a></p>
          <p><a routerLink="/cust-regform">Create a customer</a></p>

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { CustToolnavComponent } from './cust-toolnav/cust-toolnav.component';
import { CustRegformComponent } from './cust-regform/cust-regform.component';


const routes: Routes = [
  { path: '', redirectTo: 'cust-toolnav', pathMatch: 'full' }, <-- I tried removing / and adding /.
  { path: 'cust-toolnav', component: CustToolnavComponent },
  { path: 'cust-regform', component: CustRegformComponent }
];

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule]
})
export class AppRoutingModule { }