一：

const crisisCenterRoutes: Routes = [
  {
    path: '1',
    component: CrisisCenterComponent,
    children: [
      {
        path: '2',
        component: CrisisListComponent,
        children: [
          {
            path: ':id',
            component: CrisisDetailComponent,
            canDeactivate: [CanDeactivateGuard],
            resolve: {
              crisis: CrisisDetailResolver
            }
          },
          {
            path:'asdf',
            component:DuanOneComponent
          },
          {
            path: 'homi',
            component: CrisisCenterHomeComponent
          },
          {
            path:'',
            component:DuanTwoComponent
          }
        ]
      }
    ]
  }
];

这个路由访问http://localhost:4200/crisis-center/1/2/asdf是访问不到的
需要将：id的路由往后放才可以

children: [
          {
            path:'asdf',
            component:DuanOneComponent
          },
          {
            path: 'homi',
            component: CrisisCenterHomeComponent
          },
          {
            path: ':id',
            component: CrisisDetailComponent,
            canDeactivate: [CanDeactivateGuard],
            resolve: {
              crisis: CrisisDetailResolver
            }
          },
          {
            path:'',
            component:DuanTwoComponent
          }
        ]

二：
安装node-sass注意事项

新项目

ng new My_New_Project --style=scss

已有项目

安装node-sass由于需要连接github在连接aws，很难成功，需要在.npmrc文件>中（项目中自己建立）再加入如下内容，让这些连接也都只连接淘宝镜像：

sass_binary_site=https://npm.taobao.org/mirrors/node-sass/

运行

npm install node-sass --save-dev

更改

"defaults": {
     "styleExt": "scss",
}
"styles": [
        "styles.scss"
      ],