pycharm的docstring文档字符串风格

# Plain
def foo1(a, b):
    """
    """
    return a+b
# reStructuredText
def foo2(a, b):
    """
    :param a:
    :param b:
    :return:
    """
    return a+b
# Numpy
def foo3(a, b):
    """
    Parameters
    ----------
    a
    b
    Returns
    -------
    """
    return a+b
# Google
def foo4(a, b):
    """
    Args:
        a:
        b:
    Returns:
    """
    return a + b
# Epytext
def foo(a, b):
    """
    @param a:
    @param b:
    @return:
    """
    return a+b