条件、循环、函数定义、字符串操作练习

1.用循环画五角星

import turtle
turtle.color("yellow")
turtle.fillcolor("yellow")
turtle.speed(1)
turtle.begin_fill()
for i in range(5):
  turtle.forward(200)
  turtle.right(144)
turtle.end_fill()

2.用循环画同心圆

from turtle import*
for i in range(5):
    up()
    goto(0,-20*(i))
    down()
    circle(20*i)

3.用while循环画太阳花

from turtle import*

color('red','purple')
begin_fill()
while True:
    forward(200)
    left(170)
    if (abs(pos()))<1:
        break
end_fill()
done()

4.用函数定义画五个五角星

import turtle
turtle.setup(600,400,0,0)
turtle.color("yellow")
turtle.bgcolor("red")
turtle.fillcolor("yellow")
turtle.speed(5)
def mygoto(x,y):
  turtle.up()
  turtle.goto(x,y)
  turtle.down()
def mystar(z):
  turtle.begin_fill()
  for i in range(5):
      turtle.forward(z)
      turtle.right(144)
  turtle.end_fill() 
mygoto(-250,125)
mystar(125)
mygoto(-105,165)
turtle.left(40)
turtle.begin_fill()
for i in range(5):
    turtle.forward(35)
    turtle.right(144)
turtle.end_fill() 
mygoto(-30,135)
turtle.right(10)
turtle.begin_fill()
for i in range(5):
    turtle.right(144)
    turtle.forward(35)
turtle.end_fill()
mygoto(-40,75)
turtle.left(40)
turtle.begin_fill()
for i in range(5):
    turtle.right(144)
    turtle.forward(35)
turtle.end_fill()
mygoto(-75,20)
turtle.right(20)
turtle.begin_fill()
for i in range(5):
    turtle.right(144)
    turtle.forward(35)
turtle.end_fill()

5.用函数定义画钻石花瓣的太阳花

import turtle

def draw_diamond(brad):
    brad.forward(100)
    brad.right(45)
    brad.forward(100)
    brad.right(135)

def draw_art():
    
    window=turtle.Screen()
    window.bgcolor("pink")
    
    brad=turtle.Turtle()
    brad.color("purple")
    brad.speed("fastest")


    for i in range(0,36):
        draw_diamond(brad)
        draw_diamond(brad)
        brad.left(10)

    brad.right(90)
    brad.forward(155)
    brad.color('green')
    brad.forward(145)

    window.exitonclick()

draw_art()

6.输入学号，识别年级、专业、序号。

s=input("输入学号:")
print("你的年级是{}级".format(s[0:4]))
print("你的班级是网络工程一班")
print("你在班级的序号是{}".format(s[-2:]))

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'
a=int(input("输入数字（1-7）："))
print(s[-3+3*a:0+3*a])

8.识别身份证号中的省市区、年龄、性别。

ID=input('请输入十八位身份证号码: ')
if len(ID)==18:
  print("你的身份证号码是 "+ID)
else:
  print("错误的身份证号码")
  
ID_add=ID[0:6]
ID_birth=ID[6:10]
ID_sex=ID[14:17]

if int(ID_add)==440101:
  print("省市区:广东省广州市市辖区")
elif int(ID_add)==440102:
    print("省市区:广东省广州市东山区")
elif int(ID_add)==440103:
    print("省市区:广东省广州市荔湾区")
elif int(ID_add)==440104:
    print("省市区:广东省广州市越秀区")
elif int(ID_add)==440105:
    print("省市区:广东省广州市海珠区")
elif int(ID_add)==440106:
    print("省市区:广东省广州市天河区")

    
birth=2017-int(ID_birth[0:4])
print("年龄：{}".format(birth)) 
  
if int(ID_sex)%2==0:
  print('性别：女')
else:
  print('性别：男')