python def say_hello_to(name): 运行错误 求解答

# hello.py
def say_hello_to(name):
"""print a hello massage"""
cap_name=name.capitalize()
print('Hello '+ cap_name +',how are you?')

显示运行错误 然后错误是这样的
Traceback (most recent call last):
File "C:/Users/yy/Desktop/python/hello.py", line 5, in
print('Hello '+ cap_name +',how are you?')
NameError: name 'cap_name' is not defined

我不是定义了cap_name=name.capitalize()？？？为什么还说我没有定义呢？

注意写法，你的输出语句要放在函数里。
def say_hello_to(name):
    """print a hello massage"""
    cap_name=name.capitalize()
    print('Hello '+ cap_name +',how are you?')
say_hello_to("myname")
#Hello Myname,how are you?

我会继续学习，争取下次回答你