我检查了pythonshell上的几个示例，它们似乎给出了相同的数字。但在一个程序中，如果一组大的数应该是近似的，它们显然会产生不同的结果。在

我想写一个小程序，模拟物体在矩形平面上的运动。为此，我必须编写一个名为“RectangularRoom”的类，该类接受宽度和高度并创建网格：class RectangularRoom(object):

"""

A RectangularRoom represents a rectangular region containing clean or dirty

tiles.

A room has a width and a height and contains (width * height) tiles. At any

particular time, each of these tiles is either clean or dirty.

"""

def __init__(self, width, height):

"""

Initializes a rectangular room with the specified width and height.

Initially, no tiles in the room have been cleaned.

width: an integer > 0

height: an integer > 0

"""

self.width = width

self.height = height

self.room_coordinates = []

for m in range(self.width):

for n in range(self.height):

self.room_coordinates.append((m,n))

self.cleaned = []

def cleanTileAtPosition(self, pos):

"""

Mark the tile under the position POS as cleaned.

Assumes that POS represents a valid position inside this room.

pos: a Position

"""

self.cleaned.append((int(pos.getX()), int(pos.getY())))

def isTileCleaned(self, m, n):

"""

Return True if the tile (m, n) has been cleaned.

Assumes that (m, n) represents a valid tile inside the room.

m: an integer

n: an integer

returns: True if (m, n) is cleaned, False otherwise

"""

assert type (m)== int and type (n) == int

return (m,n) in self.cleaned

def getNumTiles(self):

"""

Return the total number of tiles in the room.

returns: an integer

"""

return self.width*self.height

def getNumCleanedTiles(self):

"""

Return the total number of clean tiles in the room.

returns: an integer

"""

return len(self.cleaned)

def getRandomPosition(self):

"""

Return a random position inside the room.

returns: a Position object.

"""

return Position (random.randrange(0 , self.width), random.randrange(0 , self.height))

def isPositionInRoom(self, pos):

"""

Return True if pos is inside the room.

pos: a Position object.

returns: True if pos is in the room, False otherwise.

"""

return (int(pos.getX()), int(pos.getY())) in self.room_coordinates

如您所见，我使用int()方法和随机生成器实现了它。”随机随机范围". 在

在解决方案中，教师使用数学地板()函数与随机发生器随机。随机()：

^{pr2}$

令人惊讶的是，这两段代码产生了完全不同的结果。我想知道为什么会这样。int()和floor()对正数的影响应该是相同的，两个随机函数似乎产生了相似的数字。在