1）只能输入整数，并生成列表，实现最大数，将列表从小到大排序。
# define a funtion which filter numbers
def filters():
try:
num = int(input(">>> "))
except Exception as e:
print("Please input integer,not string or float!")
return(filters())
return(num)
# define a funtion which create alist
def create_alist():
l = []
flag = True
while flag:
num = filters()
if flag == True:
l.append(num)
just = input("Do U want continue, Please input y or n >>> ")
if just == "y":
flag = True
elif just == "n":
flag = False
else:
return(l)
# define a function which return biggest number
def biggest_alist(li):
for i in range(len(li)):
if len(li) == 1:
return(li[0])
else:
if li[0] > li[1]:
li.pop(1)
else:
li.pop(0)
# define a function which sort a list
def sort_li(lis):
if len(lis) == 1:
return(lis)
flag = 1
while flag:
try:
for i in range(len(lis)):
if lis[i] > lis[i+1]:
x = lis[i]
y = lis[i+1]
lis[i+1] = x
lis[i] = y
except IndexError:
pass
try:
for i in range(len(lis)):
if lis[i] - lis[i+1] > 0:
flag = 1
break
elif lis[i] - lis[i+1] < 0:
flag = 0
except IndexError:
pass
else:
print(lis)
return(lis)
biggest_alist(create_alist())
sort_li(create_alist())
2） 分解数字位数
class Num_opt(object):
"""
define a class which can process numbers
"""
def __init__(self):
self.dic = {0:"个位",1:"十位",2:"百位",3:"千位",4:"万位",5:"十万位",6:"百万位",7:"千万位",8:"亿位"}
def filters(self):
try:
self.inps = int(input("input integer >>> "))
except ValueError as e:
print("Please input integer:")
return(self.filters())
return(str(self.inps))
def split_number(self):
data = self.filters()
for i in zip(range(len(data)), data):
print("\033[32;1m{bit} : {digit}\033[0m" .format(bit=self.dic[i[0]],digit=i[1]))
obj = Num_opt()
print(obj.__doc__)
obj.split_number()
3）打印边长为n的正方形
m = int(input())
for i in range(m):
if i > 0 and i < m-1:
print("{}{}{}".format("*", " "*(2*(m-2)+1), "*"))
else:
print("* "*m)
4) 求100内的偶数或奇数的和
menu = """
1.sum(even)
2.sum(odd)
"""
li = ["even", "odd"]
# sum even or odd
def sum_2(eo):
sum1 = 0
for i in range(int(eo)-1, 100, 2):
sum1 += i
print("sum({x}):{s}" .format(x=li[int(eo)-1], s=sum1))
# judge even or odd
def sum_1(m):
print(m)
inps = input("input 1 or 2>>>")
if inps == "1":
sum_2(inps)
elif inps == "2":
sum_2(inps)
else:
print("input 1 or 2>>>")
return(sum_1(menu))
sum_1(menu)
5) 阶乘之和
# Num!
def sum_x(e1):
sum = 0
plus1 = 1
for i in range(1,e1+1):
print(i, end=' ')
plus1 *= i
sum += plus1
if i == e1:
print("\n")
print("sum(factorial):%s" %sum)
sum_x(5)
6) 求指定范围内是否为质数，且可判断某数是否为质数，如1000000内的质数
print(2)
count = 1
for x in range(3, 1000000, 2):
if x > 10 and x % 5 == 0:
continue
for i in range(3, int(x**0.5)+1, 2):
if x % i == 0:
break
else:
print(x)
count += 1
print(count)
7）99乘法表，四种表示方法
1）
for i in range(1, 10):
for j in range(1, i+1):
print("{}*{}={}".format(i, j, i*j), end="\t")
print()
2）
for i in range(1, 10):
print("\t"*(i-1), end="")
for j in range(i, 10):
print("{}*{}={}".format(i, j, i*j), end="\t")
print()
3）
for i in range(1, 10):
# print("\t"*(i-1), end="")
for j in range(i, 10):
print("{}*{}={}".format(i, j, i*j), end="\t")
print()
4）
for i in range(1, 10):
print("\t"*(9-i), end="")
for j in range(1, i+1):
print("{}*{}={}".format(i, j, i*j), end="\t")
print()
8）打印菱形
# input a odd digit
def odd_number():
try:
num = int(input("input odd digit>>>"))
if num % 2 != 1:
print("input odd digit>>>")
return(odd_number())
except exception as e:
print("input odd digit>>>")
return(odd_number())
return(num)
# create a diamond from odd digit
def create_diamond(num):
for i in range(0, num):
if i <= num//2:
print(" "*(num//2+(-i))+"*"*(1+2*i))
else:
print(" "*(i-num//2)+"*"*(num-2*(i-num//2)))
create_diamond(odd_number())
9）打印斐波那契数列的第101项
# 101th fib
li = []
def fib(max):
n1, n2 = 0, 1
x = 0
while 0 < max:
yield n2
n1, n2 = n2, n1 + n2
x += 1
return("done!")
a = fib(10)
y = 0
for i in range(101):
y += 1
result = next(a)
if y == 101:
print(y, result)
10）有1、2、3、4个数字，能组成多少个互不相同且无重复数字的三位数？都是多少？
程序分析
a = 0
for i in range(1, 5):
for j in range(1, 5):
for k in range(1, 5):
if i!=j and j!=k and i!=k:
a += 1
print(i, j, k)
print(a)
11）企业发放的奖金根据利润提成。利润(I)低于或等于10万元时，奖金可提10%；利润高于10万元，低于20万元时，低于10万元的部分按10%提成，高于10万元的部分，可可提成7.5%；20万到40万之间时，高于20万元的部分，可提成5%；40万到60万之间时高于40万元的部分，可提成3%；60万到100万之间时，高于60万元的部分，可提成1.5%，高于100万元时，超过100万元的部分按1%提成，从键盘输入当月利润I，求应发放奖金总数
num = int(input(">>>"))
if num <= 100000:
print(":{}".format(num*0.1))
elif num > 1000000:
print(":{}".format((num-1000000)*0.01+400000*0.015+200000*0.03+200000*0.05+100000*0.075+100000*0.1))
elif num // 100000 >= 6 and num // 100000 < 10:
print(":{}".format((num-600000)*0.015+200000*0.03+200000*0.05+100000*0.075+100000*0.1))
elif num // 100000 >= 4 and num // 100000 < 6:
print(":{}".format((num-400000)*0.03+200000*0.05+100000*0.075+100000*0.1))
elif num // 100000 >= 2 and num // 100000 < 4:
print(":{}".format((num-200000)*0.05+100000*0.075+100000*0.1))
elif num // 100000 >= 1 and num // 100000 < 2:
print(":{}".format((num-100000)*0.075+100000*0.1))
12）一个整数，它加上100后是一个完全平方数，再加上168又是一个完全平方数，请问该数是多少？
for i in range(1, 1000):
for j in range(1, 1000):
if i*i-j*j==168:
print(i, j, i*i-268)
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