日历是以1900年1月1日 为基础的 那天的星期1是

# 判断是否是闰年

def rn(i):

# 判断是不是闰年

if (i % 400 == 0) or (i % 4 == 0 and i % 100 != 0):

return True

else:

return False

# 计算总天数

def days(y, m):

# 总年数

leap_year = []

common_year = []

for i in range(1900, y):

if rn(i):

leap_year.append(i)

else:

common_year.append(i)

# 本年之前总天数

y_days = 366*len(leap_year) + 365*len(common_year)

# 本年本月之前总天数

m_days = 0

if m == 1:

m_days = 0

elif m == 2:

m_days = 31

elif m == 3:

if rn(y):

m_days = 60

else:

m_days = 59

elif m == 4:

if rn(y):

m_days = 91

else:

m_days = 90

elif m == 5:

if rn(y):

m_days = 121

else:

m_days = 120

elif m == 6:

if rn(y):

m_days = 151

else:

m_days = 150

elif m == 7:

if rn(y):

m_days = 182

else:

m_days = 181

elif m == 8:

if rn(y):

m_days = 213

else:

m_days = 212

elif m == 9:

if rn(y):

m_days = 244

else:

m_days = 243

elif m == 10:

if rn(y):

m_days = 274

else:

m_days = 273

elif m == 11:

if rn(y):

m_days = 305

else:

m_days = 304

elif m == 12:

if rn(y):

m_days = 335

else:

m_days = 334

all_days = y_days + m_days

return all_days

# 判断本月第一天是星期数

def f_day(all_days):

week = 0

if all_days % 7 == 0:

week = 1

elif all_days % 7 == 1:

week = 2

elif all_days % 7 == 2:

week = 3

elif all_days % 7 == 3:

week = 4

elif all_days % 7 == 4:

week = 5

elif all_days % 7 == 5:

week = 6

elif all_days % 7 == 6:

week = 7

return week

# 判断需要显示月份当月天数

def m_d(y, m):

m_30 = [4, 6, 8, 9, 11]

m_31 = [1, 3, 5, 7, 8, 10, 12]

if rn(y) and m == 2:

m_day = 29

else:

if m in m_31:

m_day = 31

elif m in m_30:

m_day = 30

else:

m_day = 28

return m_day

# 打印日历

def cal(m_day, week):

# 第一行

# print(m_day)

s1 = '星期日' + 3*' ' + '星期一' + 3*' ' + '星期二' + 3*' ' + '星期三' + 3*' ' + '星期四' + 3*' ' + '星期五' + 3*' ' + '星期六'

print(s1)

if week == 7:

for i in range(1, m_day+1):

if i < 10:

s = 2 * ' ' + str(i) + 4 * ' '

else:

s = 2 * ' ' + str(i) + 3 * ' '

print(s, end='')

if (i + len(s)) % 7 == 0:

print('')

else:

# week不是星期日的,需要往后移动week个位置

print(8*week*' ', end='')

for i in range(1, m_day+1):

if i < 10:

s = 3 * ' ' + str(i) + 4 * ' '

else:

s = 3 * ' ' + str(i) + 3 * ' '

print(s, end='')

if (week + i) % 7 == 0:

print('')

if __name__ == '__main__':

y = int(input('请输入年份'))

m = int(input('请输入月份'))

all_days = days(y, m)

week = f_day(all_days)

print(week)

m_day = m_d(y, m)

print(m_day)

cal(m_day, week)