class Item:
def __init__ (self, name, price):
self.name = name
self.price = price
# 創(chuàng)建一個(gè)Item對(duì)象,，將之賦給im變量
im = Item('鼠標(biāo)', 29.8)
# 打印im所引用的Item對(duì)象
print(im)

print (im)
print (im.__repr__)

class Apple:
# 實(shí)現(xiàn)構(gòu)造器
def __init__(self, color, weight):
self.color = color;
self.weight = weight;
# 重寫(xiě)__repr__方法，用于實(shí)現(xiàn)Apple對(duì)象的“自我描述”
def __repr__(self):
return "Apple[color=" + self.color +\
", weight=" + str(self.weight) + "]"
a = Apple("紅色" , 5.68)
# 打印Apple對(duì)象
print(a)