Java

Async/await is a powerful feature in JavaScript that simplifies working with asynchronous code. It builds on top of Promises and provides a more intuitive way to handle asynchronous operations.

What is Async/Await?

Async/await is syntactic sugar for Promises. It allows you to write asynchronous code that looks and behaves like synchronous code, making it easier to read and understand.

How to Use Async/Await

Here's a basic example of how to use async/await:

高效绘制流程图

graph TD; A-->B; A-->C; B-->D; C-->D;

高效绘制序列图

sequenceDiagram participant Alice participant Bob Alice->John: Hello John, how are you? loop Healthcheck John->John: Fight against hypochondria end Note right of John: Rational thoughts
prevail... John-->Alice: Great! John->Bob: How about you? Bob-->John: Jolly good!

高效绘制甘特图

甘特图内在思想简单。基本是一条线条图,横轴表示时间,纵轴表示活动(项目),线条表示在整个期间上计划和实际的活动完成情况。它直观地表明任务计划在什么时候进行,及实际进展与计划要求的对比。

gantt title 项目开发流程 section 项目确定 需求分析 :a1, 2019-06-22, 3d 可行性报告 :after a1, 5d 概念验证 : 5d section 项目实施 概要设计 :2019-07-05 , 5d 详细设计 :2019-07-08, 10d 编码 :2019-07-15, 10d 测试 :2019-07-22, 5d section 发布验收 发布: 2d 验收: 3d