目录
2、求出2000-2100的所有闰年，条件是四年一闰，百年不闰，四百年再闰
1、用循环语句求1+22+333+4444+55555的和
python
for i in range(1,6):
a = str(i)
lst.append(a)
for j in range(0,5):
b = int(lst[j] * (j + 1))
sum += b
print("sum = ",sum)运行结果：
python
F:\pythonProject\venv\Scripts\python.exe F:\pythonProject\yunjisuan\0719homework\04.py
sum = 60355
Process finished with exit code 02、求出2000-2100的所有闰年，条件是四年一闰，百年不闰，四百年再闰
python
lst = []
for i in range(2000,2101):
if i%4 == 0 and i%100 != 0 or i%400 == 0:
lst.append(i)
print(lst)运行结果：
python
F:\pythonProject\venv\Scripts\python.exe F:\pythonProject\yunjisuan\0719homework\05.py
[2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036, 2040, 2044, 2048, 2052, 2056, 2060, 2064, 2068, 2072, 2076, 2080, 2084, 2088, 2092, 2096]
Process finished with exit code 03、输入两个正整数，并求出它们的最大公约数和最小公倍数
python
a = int(input("请输入第一个整数："))
b = int(input("请输入第二个整数："))
if a > b:
a , b = b , a
for i in range(a,0,-1):
if a % i == 0 and b % i == 0:
print("%d和%d的最大公约数是%d"%(a , b , i))
print("%d和%d的最小公倍数是%d"%(a , b , a * b / i))
break运行结果：
python
F:\pythonProject\venv\Scripts\python.exe F:\pythonProject\yunjisuan\0719homework\06.py
请输入第一个整数：20
请输入第二个整数：26
20和26的最大公约数是2
20和26的最小公倍数是260
Process finished with exit code 04、求出100以内的所有质数
python
lst = []
flag = True
for i in range(2,101):
for j in range(2,i):
if i % j == 0:
flag = False
break
else:
flag = True
if flag == True:
lst.append(i)
print(lst)运行结果：
python
F:\pythonProject\venv\Scripts\python.exe F:\pythonProject\yunjisuan\0719homework\07.py
[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97]
Process finished with exit code 05、求100以内最大的10个质数的和
python
flag =True
sum = 0
cnt = 0
for i in range(100,1,-1):
for j in range(2,i):
if i % j == 0:
flag = False
break
else:
flag = True
if flag == True:
sum += i
cnt += 1
if cnt == 10:
print("100以内最大的10个质数的和为:",sum)
break运行结果：
python
F:\pythonProject\venv\Scripts\python.exe F:\pythonProject\yunjisuan\0719homework\08.py
100以内最大的10个质数的和为: 732
Process finished with exit code 06、求1到10所有的偶数和
python
sum = 0
for i in range(1,11):
if i % 2 == 0:
sum += i
print("1到10所有的偶数和为：",sum)运行结果：
python
F:\pythonProject\venv\Scripts\python.exe F:\pythonProject\yunjisuan\0719homework\09.py
1到10所有的偶数和为： 30
Process finished with exit code 07、将10-20不能被2或3整除的数输出
python
for i in range(10,21):
if i % 2 != 0 and i % 3 != 0:
print(i)运行结果：
python
F:\pythonProject\venv\Scripts\python.exe F:\pythonProject\yunjisuan\0719homework\10.py
11
13
17
19
Process finished with exit code 0