如何在iPhone中给出正确的输入日期格式?

我不能给出正确的输入日期格式,所以请给我正确的输入日期格式。

这里是我的示例代码和日期格式。

        NSString *yourXMLDate = @"Thursday, September 9, 2010";

       NSDateFormatter *inputFormatter = [[NSDateFormatter alloc] init];

       [inputFormatter setDateFormat:@"EEEE, MMMM dd, YYYY"]; // It doesnt work

  ---->[inputFormatter setDateFormat:@"EEEE, ????????????"];

        NSDate *inputDate = [inputFormatter dateFromString:yourXMLDate];

      NSDateFormatter *outputFormatter = [[NSDateFormatter alloc] init];

       [outputFormatter setDateFormat:@"MM/dd"];

      NSString *outputDate = [outputFormatter stringFromDate:inputDate];

谢谢!