Modal确认回调后不自动消失

Question

<nz-modal [(nzVisible)]="isShow" [nzTitle]="title" [nzContent]="modalContent" [nzFooter]="modalFooter" (nzOnCancel)="handleCancel()"><ng-template #modalContent><div  class="content"></div></ng-template><ng-template #modalFooter><button nz-button [nzType]="'primary'" (click)="handleOk()" [nzLoading]="isLoading">确定</button> <button nz-button [nzType]="'default'" (click)="handleCancel()">取消</button></ng-template></nz-modal>ts里得内容：public isShow = false;public isLoading = false;// 取消public handleCancel() {this.isShow = false;}// 确定public handleOk() {this.isLoading = true;this.param['name'] = this.inputValuethis.roleManagementService.addModifyDepartment(this.param).subscribe((res: any) => {  if (res.status === 0) {      console.log(res.data)   } else {       console.log(res.data)   }  this.isLoading = false;  this.isShow = false; });}