python获取从命令行输入的数字源码演示

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#------------------------------------------------------------------------------

#          Name: numerical_input.py

#        Author: Kevin Harris

#  Last Modified: 02/13/04

#    Description: This Python script demonstrates how to get numerical input

#                from the command line and use the if-else conditional.

#------------------------------------------------------------------------------

print()

print( "Welcome to the Area calculation program" )

print( "---------------------------------------" )

print()

# Print out the menu:

print( "Please select a shape:" )

print( "1  Rectangle" )

print( "2  Circle" )

print()

# The input function both prompts the user for input and fetches it...

shape = int( input( "> " ) )

# Calculate the area...

if shape == 1:

    height = int( input("Please enter the height: ") )

    width = int( input("Please enter the width: ") )

    print( "The area is", area )

else:

    radius = int( input("Please enter the radius: ") )

    print(  "The area is", area )

input( 'nnPress Enter to exit...' )