iOS去掉字符串中的HTML標簽的方法

方法一、NSScanner去除標簽

- (NSString *)removeTheHtmlFromString:(NSString *)htmlString {
    NSScanner * scanner = [NSScanner scannerWithString:htmlString];
    NSString * text = nil;
    while([scanner isAtEnd]==NO) {
        //找到標簽的起始位置
        [scanner scanUpToString:@"<" intoString:nil];
        //找到標簽的結束位置
        [scanner scanUpToString:@">" intoString:&text];
        //替換字符
        htmlString = [htmlString stringByReplacingOccurrencesOfString:[NSString stringWithFormat:@"%@>",text] withString:@""];
    }
    return htmlString;
}

方法二、正則方法

//正則去除標簽
-(NSString *)removeHtmlWithString:(NSString *)htmlString{
    NSRegularExpression * regularExpretion=[NSRegularExpression regularExpressionWithPattern:@"<[^>]*>|\n" options:0 error:nil];
    htmlString = [regularExpretion stringByReplacingMatchesInString:htmlString options:NSMatchingReportProgress range:NSMakeRange(0, htmlString.length) withTemplate:@""];
    return htmlString;
}