試試輸入print("I love python\n"*3):
>>> print("I love python\n"*3)
I love python
I love python
I love python
但如果輸入print("I love python\n"+3):
>>> print("I love python\n"+3)
Traceback (most recent call last):
File "<pyshell#8>", line 1, in <module>
print("I love python\n"+3)
TypeError: must be str, not int
會出現錯誤!
想想這是爲什麼???