用循环画五角星

import turtleturtle.begin_fill()for i in range(5):        turtle.forward(100)        turtle.right(144)turtle.end_fill()

用循环语句画同心圆

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

用while循环画太阳花

from turtle import *color('orange','yellow')begin_fill()while True:    forward(200)    left(170)    if(abs(pos()))<1:     breakend_fill()done()

函数定义画五个五角星

import turtleturtle.setup(600,400,0,0)turtle.color("yellow")turtle.bgcolor('red')turtle.fillcolor("yellow") def xy(x,y):    turtle.up()    turtle.goto(x,y)    turtle.down() def draw(r):    turtle.begin_fill()    for i in range(5):        turtle.forward(r)        turtle.right(144)    turtle.end_fill() xy(-273,110)draw(100) xy(-121,162)turtle.left(45)draw(50) xy(-79,110)draw(50) xy(-79,51)turtle.right(45)draw(50) xy(-121,22)turtle.right(45)draw(50)

用函数定义画钻石花瓣的太阳花

import turtle def draw_diamond(brad):    brad.forward(120)    brad.right(45)    brad.forward(120)    brad.right(135) def draw_art():    window=turtle.Screen()    window.bgcolor("pink")    brad=turtle.Turtle()    brad.shape("turtle")    brad.color("red")     for i in range(1,13):        draw_diamond(brad)        draw_diamond(brad)        brad.left(30)     window.exitonclick() draw_art()

　　

字符串操作

.输入学号，识别年级、专业、序号

professions = {      1144:'网络工程',      1143:'网络工程',      1142:'软件工程',      1141:'数字媒体',      }   def distinguish(studentID):    if len(studentID)<12:        print("请输入正确的学号！")    elif studentID.isdigit() != True:        print("请输入正确的学号！")    else:        grade = studentID[0:4]        profession = studentID[6:10]        num = studentID[10:12]        print("年级： {}级".format(grade))        print("专业：",professions.get(int(profession)))        print("序号:  {}号".format(num))  studentID = input("请输入学号：")distinguish(studentID)

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天"i=int(input("请输入(1-7)："))if(0<8):    print(s[-3+3*i:0+3*i])else:    print("输入有误!")

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("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")      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')

用字符串操作生成python文档各库的网址(起始网址在这里)

 

练习字符串的+,*,in,len(),eval()