计算从公元1年1月1日到y年m月d日的天数（含两端）

def calcDays(y,m,d):
    p = 1
    for i in range(1,y):
        p += 365+leapYear(i)
    for i in range(1,m):
        mh = [31,28+leapYear(y),31,30,31,30,31,31,30,31,30,31][i-1]
        p += mh
    p += d-1
    return p

def leapYear(y):
    if y<1:
        y=1
    if y%400==0:
        lp = 1
    elif y%100==0:
        lp = 0
    elif y%4==0:
        lp = 1
    else:
        lp = 0
    return lp

print(calcDays(1,2,2))

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