Question

帮助！我明天有这个程序，要求是它必须将topLeft角的X，Y笛卡尔坐标和bottomRight角的X，Y笛卡尔坐标作为raw_input。然后它打印周长，区域和那两个位置。但是我无法使raw_input工作。我已经尝试将其转换为int，拆分和多个赋值。

topLeft = int(raw_input ('Please enter a coordinate==>')).split()
bottomRight= int(raw_input ('Please enter a coordinate==>')).split()
class Rectangle:
    def __init__(self, topLeft, bottomRight):
        self.tL = topLeft
        self.bR = bottomRight
    def perim(self):
        return (2 * (self.tL)) + (2 * (self.bR))
    def area(self):
        return (self.tL) * (self.bR)
    def position(self):
        return (self.tL, self.bR)
    def __str__(self):
        return "Rectangle(%s, %s)" % (self.tL, self.bR)

r1 = (Rectangle (topLeft,bottomRight))
print r1
print "Perimeter: %s" % r1.perim()
print "Area: %s" % r1.area()
print "Position: (%s, %s,)" % r1.position()

这是我最接近的尝试，但我仍然收到错误：

Traceback (most recent call last):
  File "C:\Users\Mary\Desktop\Python Programs\Rectangle.py", line 1, in <module>
    topLeft = int(raw_input ('Please enter a coordinate==>')).split()
ValueError: invalid literal for int() with base 10: '(5,10)'

Answer 1

这是怎么回事？你犯了很多错误。

tx, ty = raw_input("tx ty: ").split() # the input is "4 5", int("5 4")??? 
bx, by = raw_input("bx by: ").split()

然后

self.tx = int(tx)
self.ty = int(ty)
# and so on ...
# If you want to work with tuples `(xt,yt)` Make both int first.

。并且所有类方法都不正确，例如perimeter = 2*(bx-tx) + 2*(ty-by)而不是2*(tx,ty) + 2*(bx,by)。在语义上它没有意义。

使用笛卡尔坐标的raw_input的类矩形？

1 个答案: