NSURLConnectionDelegate协议中的方法有哪些？

选择了： connection:didReceiveData:、connection:didFailWithError:、connectionDidFinishLoading:

选择了： connection:didReceiveData:、connection:didFailWithError:

选择了： connection:didReceiveData:、nitWithRequest:delegate:、connectionDidFinishLoading:

选择了： connection:didReceiveData:、nitWithRequest:delegate:

选择了： connection:didReceiveData:、connectionDidFinishLoading:

选择了： connection:didFailWithError:、nitWithRequest:delegate:、connectionDidFinishLoading:

选择了： connection:didFailWithError:、nitWithRequest:delegate:

选择了： connection:didFailWithError:、connectionDidFinishLoading:

选择了： nitWithRequest:delegate:、connectionDidFinishLoading:

选择了： connection:didReceiveData:、connection:didFailWithError:、connectionDidFinishLoading: