iOS中的NSURLErrorCancelled = -999是什么？

概述有人可以描述如何使用“NSURLErrorCancelled = -999”. 来自Apple文档： NSURLErrorCancelled (-999) “Returned when an asynchronous load is canceled. A Web Kit framework delegate will receive this error when it performs a c 有人可以描述如何使用“NSURLErrorCancelled = -999”.解决方法 来自Apple文档：

NSURLErrorCancelled (-999)

“Returned when an asynchronous load is canceled. A Web Kit framework
delegate will receive this error when it performs a cancel
operation on a loading resource. Note that an NSURLConnection or
NSURLDownload delegate will not receive this error if the download is
canceled.”

你可以做的最好的事情就是忽略这个错误

if ([error code] != NSURLErrorCancelled) {   //here you'll get a real error }

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