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的我從Objective-C的轉換NSURL的檢查驗證,以迅速2,但無法弄清楚如何解決:Use of unresolved identifier 'NSURLRequestUseProtocolCachePolicy'
錯誤也:使用未解決的標識符「NSURLRequestUseProtocolCachePolicy」在SWIFT 2
Cannot convert value of type 'NSHTTPURLResponse' to expected argument type 'AutoreleasingUnsafeMutablePointer<NSURLResponse?>' (aka 'AutoreleasingUnsafeMutablePointer<Optional<NSURLResponse>>')