一、输出hello world print('hello world’）

Python 3.6.1 (v3.6.1:69c0db5, Mar 21 2017, 17:54:52) [MSC v.1900 32 bit (Intel)] on win32Type "copyright", "credits" or "license()" for more information.>>> ================ RESTART: C:/Users/Administrator/Desktop/1.py ================hello world>>>

二、求和运算a1 = input("a1:")a2 = input("a2:")sum = float(a1)+float(a2)print(sum)

================ RESTART: C:/Users/Administrator/Desktop/1.py ================a1:1a2:23.0

三、求三角形的面积import matha= input("a:")b= input("b:")c= input("c:")d=(float(a)+float(b)+float(c))/2e=float(d)area =e*(e-float(a))*(e-float(b))*(e-float(c))f=float(area)g=math.sqrt(f)print(f)

================ RESTART: C:/Users/Administrator/Desktop/1.py ================a:4b:5c:698.4375

四、圆的面积Circle = input("R :")area = 3.1415926 * float(Circle)*float(Circle)print(area)

================ RESTART: C:/Users/Administrator/Desktop/1.py ================R :328.274333400000003

五、画五角星import turtlea = 0while a < 5:    turtle.forward(200)    turtle.left(144)    a = a + 1

　　

六、画黄色五角星from turtle import *fillcolor("yellow")begin_fill()while True:    forward(200)    right(144)    if abs(pos())< 1:        breakend_fill()