必须返回字符串
class PoloBlog:
def __init__(self, name):
self.name = name
blog1 = PoloBlog("小菠萝")
print(blog1)
# 输出结果
<__main__.PoloBlog object at 0x1078a4dc0>
class PoloBlog:
def __init__(self, name):
self.name = name
def __str__(self):
return "name is %s" % self.name
blog1 = PoloBlog("小菠萝")
print(blog1)
# 输出结果
name is 小菠萝