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;