HarmonyOS 获取时间戳还有md5加密，有没有同步的方法

@Entry 
@Component 
struct Index22 { 
  @State formattedDate: string = ''; 
 
  aboutToAppear(): void { 
    let dateFormat = new Intl.DateTimeFormat('zh-CN', { dateStyle: 'short', timeStyle: 'short' }); 
    this.formattedDate = dateFormat.format(Date.now()) 
    console.log(this.formattedDate) 
  } 
 
  build() { 
    Row() { 
      Column() { 
        Text(this.formattedDate).fontSize(50).fontWeight(FontWeight.Bold) 
      }.width('100%') 
    }.height('100%') 
  } 
}