python实践课2——8个python题目

1：计算1到10之和

result = 0
for i in range(11):
    result += i
print(result)

2：输出2000到3000内的所有闰年

for i in range(2000,3001):
    if(i%100 == 0):
        if(i%400 == 0): print(i,end = ' ' )
    elif(i%4 == 0): print(i, end = ' ')

3：计算Sn = 1-3+5-7+9+…

import math
result = 0
n = int(input("请输入一个正整数表示相加数的个数"))
for i in range (1,n+1):
    result += pow(-1,i-1)*(2*i-1)
print(result)
    

4：打印九九乘法表（上三角、下三角、矩形块）

for i in range(1,10):
    for j in range(1,i+1):
       print(f"{j}×{i}={i*j}",end="t")
    print(end = 'n')
    
print(end = 'n')
for i in range(1,10):
    for j in range(1,10):
        if i <= 9:
            print(f"{j}×{i}={i * j}", end="t")
    print("")
    
print(end = 'n')
for i in range(1,10):
    for j in range(i,10):
        print(f"{i}×{j}={i * j}", end="t")
    print(" ")


for i in range(1,10):
    for j in range(1,i+1):
       print("%d*%d=%d"%(j,i,j*i),end="t")
    print(end = 'n')

5：分别使用for、while循环求n！

def f(n):
    if(n == 1): return 1
    return f(n-1)*n


n = int(input("请输入一个整数:"))
if(n == 0): print(0)
else:
    print(f(n))


n = int(input("请输入一个整数:"))
if(n == 0): print(0)
else:
    result = 1
    for i in range(2,n+1):
        result *= i
    print(result)

n = int(input("请输入一个整数:"))
if(n == 0): print(0)
else:
    result = 1
    while(n):
        result *= n
        n -= 1
    print(result)

6：产生两个0~100的随机整数a,b，求这两个整数的最大公约数和最小公倍数

import random
def f(a,b):
    if(a < b):a,b = b,a
    if(b==0): return a
    return f(a%b,b)
a = random.randint(0,100)
b = random.randint(0,100)
result1 = f(a,b)
result2 = a*b/result1
print(f'两个值分别是{a},{b},最大公约数是{result1},最小公倍数是{result2}')

7：实现下面程序：

while(1):
    print("查询能量请输入能量来源！退出程序请输入0",end = 'n')
    print("能量来源如下：")
    print("生活缴费、行走捐、线下支付、网络购票")
    a = input()
    if(a == "生活缴费"):print("180g")
    elif(a == "行走捐"):print("200g")
    elif(a == "共享单车"):print("80g")
    elif(a == "线下支付"):print("5g")
    elif(a == "网络购票"):print("80g")
    elif (a == "0"):break

8：

while(1):
    print("——————10086查询功能——————",end = 'n')
    print("输入a，查询当前余额",end = 'n')
    print("输入b，查询当前剩余流量",end = 'n')
    print("输入c，查询当前剩余通话",end = 'n')
    print("输入d，退出自助查询功能",end = 'n')
    a = input()
    if(a == "a"):print("当前余额为：9999元",end = 'n')
    elif(a == "b"):print("当前剩余流量为：100G",end = 'n')
    elif(a == "c"):print("当前剩余通话为：200分钟",end = 'n')
    elif(a == "d"):break