调整用户头像展示问题，title遗漏

src/app/components/header/header.component.html

@@ -17,7 +17,10 @@
         <button nz-button nzType="primary" (click)="registration()">注册</button>
     </div>
     <div *ngIf="userInfo" id="info">
-        <img [src]="userInfo.avatarImgUrl" alt="avatar" id="avatar">
+        <!--        <img [src]="userInfo.avatarImgUrl" alt="avatar" id="avatar">-->
+        <nz-avatar [nzSrc]="userInfo.avatarImgUrl" *ngIf="userInfo.avatarImgUrl===noAvatarUrl"></nz-avatar>
+        <nz-avatar [nzText]="userInfo.displayName" style="background: #f56a00"
+                   *ngIf="userInfo.avatarImgUrl!==noAvatarUrl"></nz-avatar>
         <button nz-button nzType="link" class="info-name"
                 nz-dropdown [nzDropdownMenu]="menu" nzPlacement="bottomRight" nzTrigger="click">
             {{userInfo.displayName}}<i nz-icon nzType="caret-down" nzTheme="outline"></i>

src/app/components/header/header.component.ts

@@ -49,7 +49,7 @@ export class HeaderComponent implements OnInit {
     @Output() registrationEvent = new EventEmitter();
     size: 'large' | 'default';
     currentPath: string;
-
+    noAvatarUrl = 'https://cdn.celess.cn/'
 
     public pageList: {
         path: string;