条件循环函数定义字符串操作练习

Posted 2020-10-06 yezless

1.用循环画五角星

import turtle
turtle.color(‘yellow‘)
turtle.begin_fill()
turtle.fillcolor(‘yellow‘)
for i in range(5):
  turtle.forward(300)
  turtle.left(144)

turtle.end_fill()

2.用循环画同心圆

import turtle

for i in range(5):
  turtle.up()
  turtle.goto(0,-50*i)
  turtle.down()
  turtle.circle(50*i)

3.用while循环画太阳花

from turtle import *

color("red")
fillcolor("yellow")
begin_fill()
while True:
    forward(300)
    left(170)
    if abs(pos())<1:
        break
end_fill()

4.用函数定义画五个五角星

import turtle
turtle.bgcolor(‘red‘)
turtle.color(‘yellow‘)

turtle.fillcolor(‘yellow‘)
def my_goto(x,y):
    turtle.up() 
    turtle.goto(x,y)
    turtle.down()
def my_draw(r):
    turtle.begin_fill()
    for i in range(5):
      turtle.forward(r)
      turtle.right(144)
    turtle.end_fill()
my_goto(-310,200)
my_draw(150)

my_goto(-180,290)
my_draw(40)

my_goto(-100,230)
my_draw(40)

my_goto(-100,130)
my_draw(40)

my_goto(-180,70)
my_draw(40)

5.用函数定义画钻石花瓣的太阳花

from turtle import *
color("blue")
fillcolor("pink")
def my_L():
    forward(100)
    right(45)
    forward(100)
    right(135)
    forward(100)
    right(45)
    forward(100)
    right(135)
begin_fill()
for i in range(18):
    my_L()
    left(20)
end_fill()
goto(0,-350)

6.输入学号，识别年级、专业、序号。

sid=input("学号:")

g=sid[2:4]
p=sid[4:8]
t=sid[-2:]
print("年级：{}级".format(g))
if p=="0611":
  print("专业：网络工程")
print("序号：{}".format(t))

7.输入1-7的数字，输出对应的“星期几”。

s="星期一星期二星期三星期四星期五星期六星期日"
t=int(input("1-7:"))
print(s[3*(t-1):3*t])

8.识别身份证号中的省市区、年龄、性别。

id=input("身份证号：")
s=id[0:5]
q=id[14:17]
t=id[6:10]
if s=="440682":
  print("地区：佛山")
if int(q)%2==0:
   print("女")
else:
   print("男")
a=2017-int(t)
print("年龄：{}".format(a))

 

9.用字符串操作生成python文档各库的网址(起始网址在这里https://docs.python.org/3.6/library/index.html)

s="https://docs.python.org/3.6/library/index"
t=".html"
add=s+t
print(add)