node.js - 如何将从数据库获取的postno(帖子编号ID)发送到另一个组件？

Question

代码:

<div class="news" *ngFor="let post of list">
   <mat-accordion class="accordion">
      <mat-expansion-panel>
         <mat-expansion-panel-header>
            <mat-panel-title >{{post.title}}</mat-panel-title>
            <div class="w3-right">
                <mat-panel-title >{{post.date}}</mat-panel-title>
            </div>
         </mat-expansion-panel-header>
         {{post.description}}
         <app-gallery [postno]={{post.pNo}}></app-gallery>
      </mat-expansion-panel>
   </mat-accordion>
</div>

但是输出是:

Parser Error: Unexpected token {, expected identifier, keyword, or string at column 2 in [{{post.pNo}}] in ng:///AppModule/ForumComponent.html@44:27 ("

Answer 1

只要您在帖子内有 pNo，这应该有效

   <div class="news" *ngFor="let post of list">
      <mat-accordion class="accordion">
        <mat-expansion-panel>
          <mat-expansion-panel-header>
            <mat-panel-title >{{post.title}}</mat-panel-title>
            <div class="w3-right">
            <mat-panel-title >{{post.date}}</mat-panel-title>
          </div>
          </mat-expansion-panel-header>
          {{post.description}}
          <app-gallery [postno]="post?.pNo"></app-gallery>
        </mat-expansion-panel>
      </mat-accordion>
    </div>