Python 简单计算要求形状面积的实例

有个q友问怎么写个程序能按照要求输入，再输出对应形状的面积？

我大概写了几行，没有考虑输出异常，重点想记录下 int 的接收，如下图

知识点就两个

1， 长方形面积 & 三角形面积，因为要从终端接收用户的多个参数输入，所以用了map(int, raw_input().split()) 这种方式

2. 圆面积只想保留小数点后两位，就用到了 %.2f 来接收

#!/usr/bin/python 
#-*-coding:utf-8 -*-
 
name = raw_input("please input your name here : ")
if name == '':
 print "we don't like anonymous"
else:
 choose = input("which shape would you like to choose 1:rectangle, 2:square, 3:triangle or 4 round? :")
 if choose == 1:
 width, height = map(int, raw_input("input width and height here, like 5 8 :").split())
 print "area = %d" % (width * height)
 elif choose == 2:
 length = input("input width and height here, like 4:")
 print "area = %d" % length ** 2
 elif choose == 3:
 width, height = map(int, raw_input("input width and height here, like 5 8 :").split())
 print "area = %d" % (width * height / 2)
 elif choose == 4:
 diameter = input("input diameter here like 3 :")
 print "area = %.2f" % (3.14 * (diameter / 2) ** 2)
 else:
 print "invalid choose"

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