Basic Python Training

1, simple input/output interaction

  Input name=input (' hello,world! ')  Output Print Hello world!

2, the user enters two numbers, calculates and outputs the sum of two numbers: (try to do this with just one line of code)

Enter the number x=input (' Please enter the first number: ') y=input (' Please enter the second number: ') sum sum=float (x) +float (y) to display the result print (' two number adds result:%.2f '%sum)

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

User input value r=input (' Input circle radius: ') π=3.14 calculation s=float (π) *float (r) **2 display result print (' Circle area: ', S)

Basic Python Training