自定义函数

Python 函数入门

Hugo Bowne-Anderson

Instructor

学习内容：

x = str(5)

print(x)

'5'

print(type(x))

<class 'str'>

def square():    # <- 函数头

    new_value = 4 ** 2    # <- 函数体
    print(new_value)

square()

def square(value):
    new_value = value ** 2
    print(new_value)

square(4)

square(5)

def square(value):
    new_value = value ** 2
    return new_value

num = square(4)

print(num)

def square(value):
    """返回一个值的平方。"""
    new_value = value ** 2
    return new_value

Python 函数入门