ios - 如何从字符串中获取日期、时间和金额

Question

我有

NSstring *str = @"Existing applications can be improved or extended on 11-01-2014 at 4 PM for 120$ ";

我想从上面的字符串中获取日期、时间和金额。上面的字符串我正在尝试动态获取..

我试过的是

NSArray *arySeperator = [result componentsSeparatedByString:@" "];
for(int i=0;i< [arySeperator count];i++)
{

}

无法继续..

请就如何进一步进行提供任何帮助或建议？

Answer 1

试试这个

 NSString *str = @"Existing applications can be improved or extended on 11-01-2014";
    NSString *aStrDate = [str substringFromIndex:[str rangeOfString:@" " options:NSBackwardsSearch].location + 1];
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    // this is imporant - we set our input date format to match our input string
    // if format doesn't match you'll get nil from your string, so be careful
    [dateFormatter setDateFormat:@"dd-MM-yyyy"];
    NSDate *dateFromString = [[NSDate alloc] init];
    // voila!
    dateFromString = [dateFormatter dateFromString:aStrDate];