UIDatePicker *picker        =   [[UIDatePicker alloc]initWithFrame:CGRectMake(0, 0,[UIParam widthScreen] ,50 )];        picker.minimumDate          =   [NSDate date];    picker.maximumDate          =   nil;    picker.backgroundColor      =   [UIColor whiteColor];    picker.layer.borderColor    =   [kUIColor(238, 238,238) CGColor];    picker.layer.borderWidth    =   1;    [picker addTarget:self action:@selector(dateChange:) forControlEvents:UIControlEventValueChanged];    NSLocale *locale            =   [[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"];        picker.locale               =   locale;        //设置日期的显示格式    picker.datePickerMode       =   UIDatePickerModeDateAndTime;