|  |  | 
 |  |  |                </div> | 
 |  |  |             </div> | 
 |  |  |          </div> | 
 |  |  |          <div nz-col [nzSpan]="6" class="mb-md" *ngIf="items.length!=5"> | 
 |  |  |          <div nz-col [nzSpan]="6" class="mb-md" *ngIf="items.length < 2"> | 
 |  |  |             <button nz-button type="button" [nzType]="'primary'" [nzSize]="'large'" (click)="addItem()"> | 
 |  |  |                <!-- <i class="anticon anticon-plus"></i> --> | 
 |  |  |                <i class="anticon anticon-plus-circle-o"></i> | 
 |  |  | 
 |  |  |                </div> | 
 |  |  |             </div> | 
 |  |  |          </div> | 
 |  |  |          <div nz-col [nzSpan]="6" class="mb-md" *ngIf="items.length!=1"> | 
 |  |  |          <div nz-col [nzSpan]="6" class="mb-md" *ngIf="items.length > 1"> | 
 |  |  |             <button nz-button type="button" [nzType]="'danger'" [nzSize]="'large'" (click)="items.splice(i, 1)" nzGhost> | 
 |  |  |                <i class="anticon anticon-minus-circle-o dynamic-delete-button"></i> | 
 |  |  |                <span>删除查询条目</span> |