#import //定义下载中的blocktypedef void(^ProcessBlock)(NSURLResponse *response,NSData *data,NSError *error);//定义下载完成的blocktypedef void(^CompletionBlock)(NSURLResponse *response,NSData *data,NSError *error);//接受网络连接协议@interface CustomConnection : NSURLConnection+ (CustomConnection *)sendAsyRequest:(NSURLRe Read More