python获取从命令行输入的数字代码演示
#------------------------------------------------------------------------------ # 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...' )