python判断输入日期是该年的第几天

1.输入日期，判断日期是该年度的第几天

　　

iyear = int(input("请输入年：\n"))
imonth = int(input("请输入月：\n"))
iday = int(input("请输入日：\n"))



def checkYear(iyear):
    return ((iyear % 4 == 0 and iyear % 100 != 0) or iyear % 400 == 0)


tol_day = 0

for i in range(1, imonth):
    # tol_day+=lis[i]
    if i in [1, 3, 5, 7, 8, 10, 12]:
        tol_day += 31
    elif i == 2:
        tol_day += 28
        if checkYear(iyear):
            tol_day += 1
    else:
        tol_day += 30
tol_day += iday
print(tol_day)

或者：
lis = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
#如果是闰年的话，2月份加一天
if checkYear(year):
    lis[2] += 1
#遍历一次days，对应月份中的天数,把对应的天数传递给tol_day存储
for i in range(month):
    tol_day+= lis[i]
print(tol_day+iday)

2..输入日期，判断日期距离现在是多少天

#datetime 获取年月日
import datetime
datetime.datetime.now().year
datetime.datetime.now().month
datetime.datetime.now().day



import datetime

def func():
    y = input("请输入年份")
    m = input("请输入月份")
    d = input("请输入日期")
    t1 = datetime.datetime.now()#获取当前时间
    t2 = datetime.datetime(int(y),int(m),int(d))#获取指定时间
    t3 = t2 - t1
    print("离%s-%s-%s还有%d天"%(y,m,d,t3.days))
func()

　3.打印以下内容：

for i in range(9, 0, -1):
    for k in range(0, 9 - i):
        print("    ", end="\t")
    for j in range(1, i + 1):
        print("{}*{}={:02d}".format(i, j, i * j), end="\t")
    print()



for i in range(1, 11):
    for j in range(1, 11):
        print(" * ", end="")

    print()


print("---------------------------")
for i in range(1, 11):
    for j in range(1, 11):
        if i == 1 or i == 10:
            print(" *  *  *  *  *  *  *  *  *  * ", end="")
            break
        elif  j == 1 or j == 10 :
            print(" * ", end="")
        else:
            print(" . ", end="")
    print()

print("---------------------")

for i in range(1, 11):
    for j in range(1, 11):
        if i == 1 or i == 10:
            print(" *  *  *  *  *  *  *  *  *  * ", end="")
            break
        elif i == j or j == 1 or j == 10 or (i + j == 11):
            print(" * ", end="")
        else:
            print("   ", end="")
    print()


print("---------------------")

for i in range(1, 11):
    for j in range(1, 11):
        if i == 1 or i == 10:
            print(" *  *  *  *  *  *  *  *  *  * ", end="")
            break
        elif i == j or j == 1 or j == 10 or (i + j == 11):
            print(" * ", end="")
        elif i <= j and j + i >= 11:
            print(" $ ", end="")
        else:
            print("   ", end="")
    print()