python获取从命令行输入数字的方法

本文实例讲述了python获取从命令行输入数字的方法。分享给大家供大家参考。具体如下：

#----------------------------------------#      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: ") )  area = height*width  print( "The area is", area )else:  radius = int( input("Please enter the radius: ") )  area = 3.14*(radius**2)  print( "The area is", area )input( '/n/nPress Enter to exit...' )

希望本文所述对大家的Python程序设计有所帮助。