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求大神帮忙~~~我创建了一个类,如下:
class Dog():
"""一次模拟小狗的简单尝试"""
def __init__(self,name,age):
"""初始化属性name和age"""
self.name=name
self.age=age
def sit(self):
"""模拟小狗被命令时蹲下"""
print(self.name.title()+" is now sitting.")
def roll_over(self):
"""模拟小狗被命令时打滚"""
print(self.name.title()+" rolled over.")
my_dog=Dog('willie',6)
print("My dog's name is "+my_dog.name.title+".")
但是我调用它的时候提示错误了,如下:Traceback (most recent call last): File "D:/01Python/scratch_3.py", line 18, in <module> print("My dog's name is "+my_dog.name.title+".")TypeError: must be str, not builtin_function_or_method
请问是什么原因导致的?
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