String s = start;//字符串类型日期
String year = s.substring(0, 4);// 年
String month = s.substring(5, 7);// 月
String day = s.substring(8, 10);// 日
int hour = Integer.parseInt(h);
int score;
int dayOfTheWeek = (Integer.parseInt(year) - 1900) * 365
+ (Integer.parseInt(year) - 1900) / 4;
if (Integer.parseInt(year) % 4 == 0 && Integer.parseInt(month) <= 2) {
dayOfTheWeek--;
}
switch (Integer.parseInt(month)) {
case 12:
dayOfTheWeek += 30;
case 11:
dayOfTheWeek += 31;
case 10:
dayOfTheWeek += 30;
case 9:
dayOfTheWeek += 31;
case 8:
dayOfTheWeek += 31;
case 7:
dayOfTheWeek += 30;
case 6:
dayOfTheWeek += 31;
case 5:
dayOfTheWeek += 30;
case 4:
dayOfTheWeek += 31;
case 3:
dayOfTheWeek += 28;
case 2:
dayOfTheWeek += 31;
}
dayOfTheWeek = (Integer.parseInt(day) + dayOfTheWeek) % 7;
根据日期推算星期几(1900年之后)
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