ArkTS多线程下使用单例会创建多份实例

let sig = SingleConfig.getInstance(); 
@Concurrent 
async function test2(sig: SingleConfig){ 
  console.log("test: taskpool count is:"+sig.fetchCount()); 
} 
@Entry 
@Component 
struct Index { 
  @State message: string = 'Hello World'; 
 
  build() { 
    Row() { 
      Column() { 
        Text(this.message) 
          .fontSize(50) 
          .fontWeight(FontWeight.Bold) 
          .onClick(() => { 
            sig.incrementCount(); 
            console.info('lllll:main thread count is:'+sig.fetchCount()); 
            //hilog.info(0x0000, 'testTag', 'Test NAPI 2 + 3 = %{public}d', testNapi.add(2, 3)); 
 
          }) 
        Button("test1") 
          .onClick(async ()=>{ 
            let task = new taskpool.Task(test2, sig); 
            await taskpool.execute(task); 
          }) 
      } 
      .width('100%') 
    } 
    .height('100%') 
  } 
}