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( 'nnPress Enter to exit...' )

希望本文所述对大家的Python程序设计有所帮助。