|  | @@ -16,7 +16,7 @@
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				|  |  |                  <ion-menu-button></ion-menu-button>
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				|  |  |              </ion-buttons>
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				|  |  |              <ion-searchbar [(ngModel)]="searchInput" (ionChange)="search()" (ionClear)="search()"
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				|  |  | -                placeholder="今天想学什么呢?"></ion-searchbar>
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				|  |  | +                placeholder="小猫咪不能吃胡萝卜?"></ion-searchbar>
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				|  |  |          </ion-toolbar>
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				|  |  |      </ion-header>
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				|  |  |      <!--课程卡片区-->
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				|  | @@ -27,35 +27,25 @@
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				|  |  |                      <ng-container *ngIf="i % 2 === 0">
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				|  |  |                          <ion-col size="5.5">
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				|  |  |                              <ion-card (click)="goLessonDetail(course)">
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				|  |  | -                                <img alt="Silhouette of mountains" [src]="course?.get('courseImg')" />
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				|  |  | +                                <img alt="Silhouette of mountains" [src]="course?.get('foodImg')" />
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				|  |  |                                  <ion-card-header>
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				|  |  | -                                    <ion-card-title>{{course?.get("courseName")}}</ion-card-title>
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				|  |  | -                                    <ion-card-subtitle>评分:{{course?.get("courseScore")}}</ion-card-subtitle>
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				|  |  | +                                    <ion-card-title>{{course?.get("foodName")}}</ion-card-title>
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				|  |  |                                  </ion-card-header>
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				|  |  |  
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				|  |  |                              </ion-card>
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				|  |  |                          </ion-col>
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				|  |  |                          <ion-col size="5.5" *ngIf="i + 1 < courseList.length">
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				|  |  |                              <ion-card (click)="goLessonDetail(courseList[i+1])">
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				|  |  | -                                <img alt="Silhouette of mountains" [src]="courseList[i + 1].get('courseImg')" />
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				|  |  | +                                <img alt="Silhouette of mountains" [src]="courseList[i + 1].get('foodImg')" />
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				|  |  |                                  <ion-card-header>
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				|  |  | -                                    <ion-card-title>{{courseList[i +
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				|  |  | -                                        1].get("courseName")}}</ion-card-title>
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				|  |  | -                                    <ion-card-subtitle>评分:{{courseList[i+1].get("courseScore")}}</ion-card-subtitle>
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				|  |  | +                                    <ion-card-title>{{courseList[i +1].get("foodName")}}</ion-card-title>
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				|  |  |                                  </ion-card-header>
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				|  |  | -
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				|  |  |                              </ion-card>
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				|  |  | -
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				|  |  |                          </ion-col>
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				|  |  |                      </ng-container>
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				|  |  |                  </ng-container>
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				|  |  |              </ion-row>
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				|  |  |          </ion-grid>
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				|  |  |      </ion-content>
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				|  |  | -    <!-- 触底控制区域 -->
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				|  |  | -    <ion-infinite-scroll #infiScroll (ionInfinite)="onBottomLoad($event,infiScroll)">
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				|  |  | -        <ion-infinite-scroll-content loadingText="Please wait..."
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				|  |  | -            loadingSpinner="bubbles"></ion-infinite-scroll-content>
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				|  |  | -    </ion-infinite-scroll>
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				|  |  | -    <!-- <div class="navfooter"> </div> -->
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				|  |  | +
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				|  |  |  </div>
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