HarmonyOS 获取class实例上的所有函数名

function getMethods(classInstance: ESObject): string[] { 
  return Object.getOwnPropertyNames(classInstance.prototype).filter(name => 
  typeof classInstance.prototype[name] === 'function' && name !== 'constructor'); 
} 
 
class FuncObj { 
  constructor() { 
  } 
 
  func0() { 
    console.log('func0') 
  } 
 
  public func1() { 
    console.log('func1'); 
  } 
 
  private func2() { 
    console.log('func2'); 
  } 
 
  protected func3() { 
    console.log('func3') 
  } 
} 
 
 
@Entry 
@Component 
struct Index { 
  @State funcNames: string = '' 
  build() { 
    Column() { 
      Button('获取函数名称').onClick(() => { 
        const methodList = getMethods(FuncObj) as string[] 
        this.funcNames = methodList.join('、') 
      }).margin({ bottom: 20 }) 
      Text(this.funcNames) 
 
    }.justifyContent(FlexAlign.Center) 
    .alignItems(HorizontalAlign.Center) 
    .height('100%') 
    .width('100%') 
  } 
}