HarmonyOS 怎么删除cookie里某一项

// 将指定url下指定domain的cookie全都清除
public static clearCookieByDomain(sourceUrl: string = '', domain: string = '') {
  if (sourceUrl === '' || domain === '') {
    return
  }

  try {
    const cookieStr = CookieUtil.getCookie(sourceUrl)
    let cookieArray = cookieStr.split(';');
    const cookieKeys = cookieArray.map(item => {
      return item.split('=')[0].trim()
    })
    cookieKeys.forEach(key => {
      // tip: url、domain、key全都要对上才能删除指定cookie项, 且configCookieSync一次只能设置一个cookie项
      webview.WebCookieManager.configCookieSync(
        domain,
        CookieUtil.createExpireCookie(key, domain)
      )
    })
  } catch (err) {
    LogUtil.error("CookieUtil", err?.code, err.message, err.stack) // TODO：Senty上报
  }
}

public static createExpireCookie(key: string = '', domain: string = ''): string {
  if (key === '' || domain === '') {
    return ''
  }

  return key + '=' +
    '; Path=/' +
    '; Domain=' + domain +
    '; HttpOnly; Secure; Expires=Thu, 01 Jan 1970 00:00:00 GMT';
}