// 1. 初始化
    UIDatePicker *datePicker = [[UIDatePicker alloc]initWithFrame:CGRectMake(0, 200, 375, 100)];
    // 2. 設(shè)置當?shù)貢r區(qū)(點語法 和 setter,getter都可以)
    datePicker.locale = [NSLocale localeWithLocaleIdentifier:@"zh_Hans_CN"];// 可不寫
    // 3. 設(shè)置允許的最大最小日期
    NSDate *minDate =  [NSDate dateWithTimeIntervalSinceNow:-100*12*30*24*60*60];
    NSDate *maxDate =  [NSDate dateWithTimeIntervalSinceNow:100*12*30*24*60*60];
    datePicker.minimumDate = minDate;
    datePicker.maximumDate = maxDate;
    [datePicker setDate:minDate animated:YES];
    // 4.輸出模式
    datePicker.datePickerMode = UIDatePickerModeDate;// 默認設(shè)置
    // 5. 讀取日期
    NSDate *date = datePicker.date;
    NSLog(@"%@",date);
    // 6. addTarget
    [datePicker addTarget:self action:@selector(dateAction:) forControlEvents:UIControlEventValueChanged];

- (void)dateAction:(UIDatePicker * )sender{
    NSLog(@"%@",sender.date);
}