详解Angular2 关于*ngFor 嵌套循环

在项目开发中拿到的数据是这样的，要循环遍历出来。可是在ng2中好像不能直接遍历object

 datas: any = [
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24"},
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24"},
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24"},
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24"},
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24"},
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24"},
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24"},
 ];

在搜索之后发现了这种方法可以实现。

array-ngfor.ts

import { component } from '@angular/core';

@component({
 selector: 'page-array-ngfor',
 templateurl: 'array-ngfor.html',
})
export class arrayngfor {

 constructor() { }

 datas: array<any> = [
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24" },
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24" },
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24" },
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24" },
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24" },
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24" },
  { num: 1, date: "2017-04-12", sellnum: "1231234", sellmpney: "1233", returnnum: "24" },
 ];

 getkeys(item) {
  return object.keys(item);
 }
}

array-ngfor.html

<ion-header>
 <ion-navbar>
  <ion-title>关于ngfor 嵌套循环</ion-title>
 </ion-navbar>
</ion-header>

<ion-content>
 <ion-row *ngfor="let item of datas">
  <ion-col *ngfor="let key of getkeys(item)"> {{ item[key] }}</ion-col>
 </ion-row>
</ion-content>

重点的是这个方法

 getkeys(item){
    return object.keys(item);
  }

结果：

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。