iphone开发使用得替换方法及正则表达式替换

来源：互联网发布：影楼修片用什么软件编辑：程序博客网时间：2024/06/06 13:10

替换：

[mutablestring replaceOccurrencesOfString:@"<" withString:@"<" options:0 range:NSMakeRange(0,[mutablestring length])];

[mutablestring replaceOccurrencesOfString:@">" withString:@">" options:0 range:NSMakeRange(0,[mutablestring length])];

正则表达式替换：

    NSRegularExpression *regular;

   regular = [[NSRegularExpression alloc] initWithPattern:@"</p>"
                                                   options:NSRegularExpressionCaseInsensitive
                                                   error:nil];
   nomutablestring = [regular stringByReplacingMatchesInString:nomutablestring options:0 range:NSMakeRange(0, [nomutablestring length]) withTemplate:@"&&&"];
   [regular release];

   regular = [[NSRegularExpression alloc] initWithPattern:@"<p[^>]*TEXT-ALIGN: center[^>]*>"
                                                   options:NSRegularExpressionCaseInsensitive
                                                   error:nil];
   nomutablestring = [regular stringByReplacingMatchesInString:nomutablestring options:0 range:NSMakeRange(0, [nomutablestring length]) withTemplate:@"<p>@center@"];
   [regular release];

   ／／替换所有<>标签
   regular = [[NSRegularExpression alloc] initWithPattern:@"<([^>]*)>"
                                                   options:NSRegularExpressionCaseInsensitive
                                                   error:nil];
   nomutablestring = [regular stringByReplacingMatchesInString:nomutablestring options:0 range:NSMakeRange(0, [nomutablestring length]) withTemplate:@""];
   [regular release];

去除字符串中所有得空格及控制字符：
responseString = [responseString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet ]];