iOS 去除html标签

请求接口返回的数据里包含html标签，OC中去掉的方法之前做过，代码如下

-(NSString *)filterHTML:(NSString *)html{
    NSScanner * scanner = [NSScanner scannerWithString:html];
    NSString * text = nil;
    while([scanner isAtEnd]==NO)
    {
        [scanner scanUpToString:@"<" intoString:nil];
        [scanner scanUpToString:@">" intoString:&text];
        html = [html stringByReplacingOccurrencesOfString:[NSString stringWithFormat:@"%@>",text] withString:@""];
    }
    return html;
}

也可以使用正则去掉

-(NSString *)getZZwithString:(NSString *)string{
  NSRegularExpression *regularExpretion=[NSRegularExpression regularExpressionWithPattern:@"<[^>]*>|\n"
                                                                                  options:0
                                                                                    error:nil];
  string=[regularExpretion stringByReplacingMatchesInString:string options:NSMatchingReportProgress range:NSMakeRange(0, string.length) withTemplate:@""];
  return string;
}

还可以转换为富文本

+ (NSMutableAttributedString *)praseHtmlStr:(NSString *)htmlStr {
    NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithData:[htmlStr dataUsingEncoding:NSUnicodeStringEncoding] options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,NSCharacterEncodingDocumentAttribute :@(NSUTF8StringEncoding)} documentAttributes:nil error:nil];
    [attributedString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:13] range:NSMakeRange(0, attributedString.length)];
    [attributedString addAttribute:NSForegroundColorAttributeName value:CommonColor(Color333333) range:NSMakeRange(0, attributedString.length)];

    return attributedString;
}

但是这次使用的是swift，来看我收集的几种方法，其实都差不多

func removeHTML(htmlString : String)->String{
        return htmlString.replacingOccurrences(of: "<[^>]+>", with: "", options: .regularExpression, range: nil)
}

extension String {
    func deleteHTMLTag(tag:String) -> String {
        return self.replacingOccurrences(of: "(?i)", with: "", options: .regularExpression, range: nil)
    }
    
    func deleteHTMLTags(tags:[String]) -> String {
        var mutableString = self
        for tag in tags {
            mutableString = mutableString.deleteHTMLTag(tag: tag)
        }
        return mutableString
    }
    
    ///去掉字符串标签
    mutating func filterHTML() -> String?{
        let scanner = Scanner(string: self)
        var text: NSString?
        while !scanner.isAtEnd {
            scanner.scanUpTo("<", into: nil)
            scanner.scanUpTo(">", into: &text)
            self = self.replacingOccurrences(of: "\(text == nil ? "" : text!)>", with: "")
        }
        return self
    }
}