Python每日练习汇总

练习1 2019-3-19
# 写一个函数实现99乘法表

def x99(x):
    if x >=1 and x <=9:
        line = 1
        while line <= x:
            start=1
            while start <= line:
                print('{0}*{1}={2}'.format(start,line,start*line),end='  ')
                start+=1
            print()
            line+=1
    else:
        print('参数在1-9的正整数范围内！')
# 调用函数
x99(9)

练习2 2019-3-19

# 1到4能组成多少个互不相同且不重复数字的三位数？分别是？

for x in range(1,5):
    for y in range(1,5):
        for z in range(1,5):
            if x != y and y != z and x != z:
                print(x,y,z)

练习3 2019-3-19

# 计算两个列表对应相加的和，输出一个新的列表
a = [1,2,3]
b = [4,5,6]
c = []
for i in range(len(a)):
    c.append(a[i]+b[i])
print(c)

 练习4 2019-3-19

# 输出一个三角形
def sjx(x):
    for i in range(1,x):
        print("*"*i)
sjx(4)
print('-'*50)

#输出一个空心正方形
def zfx1(x):
    print("*"*x)
    for i in range(x-2):
        print("*"+" "*(x-2)+"*")
    print('*'*x)
zfx1(4)
print('-'*50)

#输出一个实心正方形
def zfx2(x):
    for i in range(x):
        print("*"*x)
zfx2(4)
print("-"*50)

练习5 2019-3-19

# 1、一个不超过5位数的正整数，判断位数，且输出个十百千万位上的数
num = int(input("不超过5位数的正整数: "))
n = str(num)
# 按转字符串方式去获取
if len(n) > 5:
    print("请输入一个不超过5位数的正整数!")
else:
    for i in n[::-1]:
        print(i)
print('-'*50)
# 按数字去计算获取
# for i in range(len(n)):
#     print(num%10)
#     num = num//10

# 2、输入一个数。计算出这个数以内的整数之和
def sum(x):
    s1 = 0
    for i in range(x+1):
        s += i
    print(s)
sum(5)

# 3、求可用被17整除的所有三位数
n = []
for i in range(99,1000):
    if i % 17==0:
        n.append(i)
print(n)

练习6 2019-3-19

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2019/3/19 17:18
# @Author  : wangdecheng
# @Software: PyCharm

import time,datetime

# 输入年月日，判断这一天是这一年中的第几天？
# 方法1
# y = int(input('year:\n'))
# m = int(input('month:\n'))
# d = int(input('day:\n'))

# targetDay = datetime.date(y, m, d)
# dayCount = targetDay - datetime.date(targetDay.year - 1, 12, 31)
# print('%s是%s年的第%s天。' % (targetDay, y, dayCount.days)) # 78天

# 方法2
a=[[31,28,31,30,31,30,31,31,30,31,30,31],
   [31,29,31,30,31,30,31,31,30,31,30,31]] #a[0]普通年的月天数，a[1]闰年的月天数
year=int(input("年："))
month = int(input("月："))
day = int(input("日："))
sum=0
if (year%4==0 and year%100!=0)or year%400==0:
     for i in range(1,month):
        sum=sum+a[1][i]
else:
    for i in range(1,month):
        sum=sum+a[0][i]
sum=sum+day
print("{}年{}月{}日是这一年的第{}天".format(year,month,day,sum))