淡墨春秋

Reachability.h /* Copyright (c) 2011, Tony Million. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the foll

//判断是不是数字 - (BOOL)isPureInt:(NSString*)string{     NSScanner* scan = [NSScanner scannerWithString:string];      int val;      return[scan scanInt:&val] && [scan isAtEnd]; }

引入NSURLConnectionDelegate委托 NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:stringUrl] cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData t