iOS中系统自带正则表达式的应用
//组装一个字符串,把里面的网址解析出来 NSString *urlString = @"sfdshttp://www.baidu.com"; NSError *error; //http+:[^\\s]* 这是检测网址的正则表达式 NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"http+:[^\\s]*" options:0 error:&error]; if (regex != nil) { NSTextCheckingResult *firstMatch = [regex firstMatchInString:urlString options:0 range:NSMakeRange(0, [urlString length])]; if (firstMatch) { NSRange resultRange = [firstMatch rangeAtIndex:0]; //从urlString中截取数据 NSString *result = [urlStri...