Python input and output exercises, arithmetic exercises, turtle preliminary exercises

Source: Internet
Author: User
Tags for in range

1. Output Hello word!

Print ("Hello Word")

2. Simple interaction

Name=input (" Enter name:")print("{} Students, learn python, promising!")  " . Format (name))

3, the user input two numbers, calculate and output two numbers of the sum:

A=input ( " Please enter number a:") b=input (" Please enter number B:") c= Float (a) +float (b)print(" number {} plus number {} equals {}". Format (a,b,c))

4, the user input triangle three-side length, and calculate the area of the triangle: (Helen Formula)

Import matha=input (" input Edge length A:") b=input (" input edge length B:" c=input (" input side length C:") P= (float (a) +float (b) +float (c))/2s =math.sqrt (p* (P-float (a)) * (P-float (b)) * (P-float (c)))print(side length respectively a= {},b={},c={} has a triangle with an area of {}. Format (a,b,c,s))

5. Enter the radius to calculate the area of the circle.

Radius=input (" input radius:")area =3.1415*float (RADIUS) *Float (RADIUS)  Print( the area of the circle with a radius of {} is {:. 2f}" . Format (Radius,area))

6, draw a group of same cut round

 from Import * for in range (4):    pu ()    goto (0,-100)    PD ()    Circle ((I+ 1) *20)

7. Draw a Pentagram

Import Turtle  for  in range (5):    turtle.forward (    turtle.right) (144)

8. Draw a All-yellow pentagram

Import Turtleturtle.fillcolor ("yellow") Turtle.begin_fill ()  for  in range (5):    turtle.forward (    turtle.right) (144) Turtle.end_ Fill ()

Python input and output exercises, arithmetic exercises, turtle preliminary exercises

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