iOS NSString 截取 从第n个到第m个

    NSString  *str = @"<a href=\"http://weibo.com/\" rel=\"nofollow\">微博 weibo.com</a>";

    //只需要 （微博 weibo.com</a>）中的  weibo.com

    //第n个

    long int begin = [str rangeOfString:@">"].location + 1;

    //第m个

    long int end = [str rangeOfString:@"</"].location;

    NSString * target = [NSString stringWithFormat:@"来自%@", [str substringWithRange:NSMakeRange(begin, end - begin)]];

    NSLog(@"target=%@",target);

//打印

2015-04-20 15:26:01.410 调试技巧[23655:330516] target=来自微博 weibo.com

iOS NSString 截取 从第n个到第m个

原文：http://www.cnblogs.com/lmyailgs/p/4441709.html