獲取當前的時間和刪除字符串中指定的字符

#pragma mark-獲取當前的時間

-(NSString *)getNowHourMinute{

    

    NSDate *currentDate = [NSDate date];//獲取當前時間，日期

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

    [dateFormatter setDateFormat:@"YYYY/MM/dd hh:mm:ss SS"];

    NSString *dateString = [dateFormatter stringFromDate:currentDate];

    NSLog(@"dateString:%@",dateString);

    return dateString;

    

}

//刪除字符串中的特定字符

-(NSString *)stringDeleteString:(NSString *)str

{

    NSMutableString *str1 = [NSMutableString stringWithString:str];

    for (int i = 0; i < str1.length; i++) {

        unichar c = [str1 characterAtIndex:i];

        NSRange range = NSMakeRange(i, 1);

        if (c == ' ' || c == ':' || c == '/' || c == '(' || c == ')') { //此處可以是任何字符

            [str1 deleteCharactersInRange:range];

            --i;

        }

    }

    NSString *newstr = [NSString stringWithString:str1];

    return newstr;

}