在swift中自动设置Cookies

我正在存储我的应用程序的cookies。 我正在调用

HTTPCookieStorage

类的setcookie（）方法

设置cookie:

let cookies = HTTPCookie.cookies(withResponseHeaderFields: responseheader, for: response.url!)
    for cookie in cookies {
      var cookieProperties = [HTTPCookiePropertyKey: Any]()
      cookieProperties[HTTPCookiePropertyKey.name]    = cookie.name
      cookieProperties[HTTPCookiePropertyKey.value]   = cookie.value
      cookieProperties[HTTPCookiePropertyKey.domain]  = cookie.domain
      cookieProperties[HTTPCookiePropertyKey.path]    = cookie.path
      cookieProperties[HTTPCookiePropertyKey.version] = NSNumber(value: cookie.version)
      cookieProperties[HTTPCookiePropertyKey.expires] = cookie.expiresDate

      let newCookie = HTTPCookie(properties: cookieProperties)
      HTTPCookieStorage.shared.setCookie(newCookie!)
    }

for cookie in HTTPCookieStorage.shared.cookies! {
  print(cookie)
}

从cookie store获取cookie:

let cookies = HTTPCookie.cookies(withResponseHeaderFields: responseheader, for: response.url!)
    for cookie in cookies {
      var cookieProperties = [HTTPCookiePropertyKey: Any]()
      cookieProperties[HTTPCookiePropertyKey.name]    = cookie.name
      cookieProperties[HTTPCookiePropertyKey.value]   = cookie.value
      cookieProperties[HTTPCookiePropertyKey.domain]  = cookie.domain
      cookieProperties[HTTPCookiePropertyKey.path]    = cookie.path
      cookieProperties[HTTPCookiePropertyKey.version] = NSNumber(value: cookie.version)
      cookieProperties[HTTPCookiePropertyKey.expires] = cookie.expiresDate

      let newCookie = HTTPCookie(properties: cookieProperties)
      HTTPCookieStorage.shared.setCookie(newCookie!)
    }

for cookie in HTTPCookieStorage.shared.cookies! {
  print(cookie)
}

删除cookie

for cookie in HTTPCookieStorage.shared.cookies! {
  HTTPCookieStorage.shared.deleteCookie(cookie)  
}

但是，即使我对setcookie方法进行注释，cookie也会自动设置。怎么可能呢？ 尽管我没有调用set cookie方法，但标头中的cookie和cookie存储中的cookie是相同的，这是因为

HTTPCookieStorage

的

cookieAcceptPolicy

。这就是

nshttpcookieacceptpolicy始终

这是因为

HTTPCookieStorage的
cookieAcceptPolicy
。即
nshttpcookeeacceptpolicy始终