过滤Html标签

有时候在iOS开发中，有可能遇到需要把Html的标签过滤成字符串

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过滤标签成字符串

+ (NSString *)filterHtmlTag:(NSString *)originHtmlStr{
    if (!originHtmlStr||[originHtmlStr isKindOfClass:[NSNull class]]) {
        return @“没有内容";
    }
    NSString *result = nil;
    NSRange arrowTagStartRange = [originHtmlStr rangeOfString:@"<"];
    if (arrowTagStartRange.location != NSNotFound) { //如果找到
        NSRange arrowTagEndRange = [originHtmlStr rangeOfString:@">"];
        result = [originHtmlStr stringByReplacingCharactersInRange:NSMakeRange(arrowTagStartRange.location, arrowTagEndRange.location - arrowTagStartRange.location + 1) withString:@""];
        return [self filterHtmlTag:result];    //递归，过滤下一个标签
    }else{
        result = [originHtmlStr stringByReplacingOccurrencesOfString:@" " withString:@""];  // 过滤 等标签

    }
    return result;
}

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