mark:
NSScanner是一個類，用于在字符串中掃描指定的字符萌焰，尤其是把它們翻譯/轉(zhuǎn)換為數(shù)字和別的字符串。
http://blog.csdn.net/likendsl/article/details/7974761
- (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;
}
scanner 感覺是對遍歷字符的封裝，但是又不完全，要借助while
