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的我从Objective-C的转换NSURL的检查验证,以迅速2,但无法弄清楚如何解决:Use of unresolved identifier 'NSURLRequestUseProtocolCachePolicy'
错误也:使用未解决的标识符“NSURLRequestUseProtocolCachePolicy”在SWIFT 2
Cannot convert value of type 'NSHTTPURLResponse' to expected argument type 'AutoreleasingUnsafeMutablePointer<NSURLResponse?>' (aka 'AutoreleasingUnsafeMutablePointer<Optional<NSURLResponse>>')