如何打开系统浏览器并跳转指定网页

Button("action+uri")
  .fontSize(36)
  .fontWeight(FontWeight.Bold)
  .onClick(() => {
    let want: Want ={
      action: 'ohos.want.action.viewData',
      entities: ['entity.system.browsable'],
      abilityName: 'MainAbility',
      uri: '<a href='https://www.xxx.com/about/userpwdrule.html' target='_blank'>https://www.xxx.com/about/userpwdrule.html</a>',
    }
    context.startAbility(want)
  })