this.activatedRoute.params.subscribe((params: any) => {
   this.articleUrl = params.id;
   this.articleService.getArticleByUrl(this.articleUrl)
     .subscribe(result => {
       this.article = result;
     });
 });

 updateMarkdown(): void {
   this.articleService
     .updateMarkdown(this.articleUrl, Object.assign({}, this.article, { markdown: this.mdArticle }))
     .subscribe(t => {
       setTimeout(() => this.rebirthWindow.getGlobalObject().alert(`${this.article.title}修改成功`));
     });
 }

 pageChange(pageIndex) {
   this.articleService.getArticles(pageIndex, config.article.pageSize)
     .subscribe(result => {
       this.article = result;
       this.rebirthWindow.scrollToTop(this.elmRef);
     }, (e) => console.log(e, 'ArticleListComponent error'));
 }

 getItems(pageIndex: number): Observable<SearchResult<Article>> {
   return this._ser.getArticles(pageIndex, config.article.pageSize);
 }

 ngOnInit() {
   this.articleService.getArticles(1, 5)
     .subscribe(result => {
       this.article = result;
     });
 }