• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1# 验证示例代码同源--正常场景
2
3前提：同一文档中，如果出现多次引用同一段代码，则引用代码必须完全相同
4
5## 引用全量代码
6
7### ID无嵌套，代码完全一致
8
9```ts
10const promise: Promise<number> = new Promise((resolve: Function, reject: Function) => {
11  setTimeout(() => {
12    const randomNumber: number = Math.random();
13    if (randomNumber > 0.5) {
14      resolve(randomNumber);
15    } else {
16      reject(new Error('Random number is too small'));
17    }
18  }, 1000);
19})
20```
21<!--@[promise_async_operation](https://gitcode.com/openharmony/applications_app_samples/blob/master/code/DocsSample/ArkTs/ArkTsConcurrent/AsyncConcurrencyOverview/entry/src/main/ets/pages/Index.ets)-->
22
23
24### ID无嵌套，整段代码缩进不一致
25
26* list 1
27* list 2
28    ```ts
29    const promise: Promise<number> = new Promise((resolve: Function, reject: Function) => {
30    setTimeout(() => {
31        const randomNumber: number = Math.random();
32        if (randomNumber > 0.5) {
33        resolve(randomNumber);
34        } else {
35        reject(new Error('Random number is too small'));
36        }
37    }, 1000);
38    })
39    ```
40    <!--@[promise_async_operation](https://gitcode.com/openharmony/applications_app_samples/blob/master/code/DocsSample/ArkTs/ArkTsConcurrent/AsyncConcurrencyOverview/entry/src/main/ets/pages/Index.ets)-->
41* list 3
42
43### ID存在嵌套
44
45```ts
46import { BusinessError } from '@kit.BasicServicesKit';
47
48const promise: Promise<number> = new Promise((resolve: Function, reject: Function) => {
49  setTimeout(() => {
50    const randomNumber: number = Math.random();
51    if (randomNumber > 0.5) {
52      resolve(randomNumber);
53    } else {
54      reject(new Error('Random number is too small'));
55    }
56  }, 1000);
57})
58
59promise.then((result: number) => {
60  console.info(`Random number is ${result}`);
61}).catch((error: BusinessError) => {
62  console.error(error.message);
63});
64```
65<!--@[promise_then_catch_handling](https://gitcode.com/openharmony/applications_app_samples/blob/master/code/DocsSample/ArkTs/ArkTsConcurrent/AsyncConcurrencyOverview/entry/src/main/ets/pages/Index.ets)-->
66
67
68## 引用部分代码（Exclude字段）
69
70### 内容完全一致
71
72```ts
73import { taskpool } from '@kit.ArkTS';
74
75// 跨线程并发任务
76@Concurrent
77async function produce(): Promise<number> {
78  // 添加生产相关逻辑
79  console.info('producing...');
80  return Math.random();
81}
82
83class Consumer {
84  public consume(value: Object) {
85    // 添加消费相关逻辑
86    console.info('consuming value: ' + value);
87  }
88}
89
90@Entry
91@Component
92struct Index {
93  @State message: string = 'Hello World';
94
95  build() {
96    Row() {
97      Column() {
98        Text(this.message)
99          .fontSize(50)
100          .fontWeight(FontWeight.Bold)
101        Button() {
102          Text('start')
103        }.onClick(() => {
104          let produceTask: taskpool.Task = new taskpool.Task(produce);
105          let consumer: Consumer = new Consumer();
106          for (let index: number = 0; index < 10; index++) {
107            // 执行生产异步并发任务
108            taskpool.execute(produceTask).then((res: Object) => {
109              consumer.consume(res);
110            }).catch((e: Error) => {
111              console.error(e.message);
112            })
113          }
114        })
115        .width('20%')
116        .height('20%')
117      }
118      .width('100%')
119    }
120    .height('100%')
121  }
122}
123```
124<!--@[actor_model](https://gitcode.com/openharmony/applications_app_samples/blob/master/code/DocsSample/ArkTs/ArkTsConcurrent/MultithreadedConcurrency/MultiThreadConcurrencyOverview/entry/src/main/ets/pages/Index.ets)-->