��� catch ��������� ��� �� async/await ������������������������������������� ����������� Promise.all ���� ������ export default class extends think.controller.base { async indexAction(){ console.log(err.stack); }) } }) JavaScript ���� ����� p1 � p2 ���������� Promise.all ��� 2 �������������� ����������������� ThinkJS ������������������������������������� common = this.getServiceData1(); let p2 = this.getAPIData2(); let [p1Data, p2Data] = await Promise.all([p1, p2]); } } JavaScript ���� �� ���� drwxr-xr-x 5 welefen staff 170 Aug 18 15:55

execution efficiency. For this, you can use Promise.all to implement it. p1 and p2 are processed parallelly and then get both data by using Promise.all . If your projects need to output data like = this.getServiceData1(); let p2 = this.getAPIData2(); let [p1Data, p2Data] = await Promise.all([p1, p2]); } } JavaScript Output Images export default class extends think.controller.base

mostly you want to excute parallely to have higher execution efficiency. For this, you can use Promise.all to implement it. export default class extends think.controller.base { async indexAction(){ getAPIData2(); let [p1Data, p2Data] = await Promise.all([p1, p2]); } } p1 and p2 are processed parallelly and then get both data by using Promise.all . If your projects need to output data like

catch 里就不会有此 类的错误了。 并行处理 使用 async/await 来处理异步时，是串行执行的。但很多场景下我们需要并行处理，这样可以大 大提高执行效率，此时可以结合 Promise.all 来处理。 export default class extends think.controller.base { async indexAction(){ let p1 let p2 = this.getAPIData2(); let [p1Data, p2Data] = await Promise.all([p1, p2]); } } 上面的代码 p1 和 p2 是并行处理的，然后用 Promise.all 来获取 2 个数据。这样一方面代码 是同步书写的，同时又不失并行处理的性能。 如何输出图片 项目中有时候要输出图片等类型的数据，可以通过下面的方式进行：

// 分类和⽂文章列表数据都 OK 后渲染模版 return Promise.all([catePromise, articlePromise]).then(function(){