如何格式化一个函数中包含多个条件的If语句

def my_function(x):
    if x < 0:
        print("x is negative")
    elif x == 0:
        print("x is zero")
    else:
        print("x is positive")

def my_function(x):
    if x < 0:
        print("x is negative")

    elif x == 0:
        print("x is zero")

    else:
        print("x is positive")

def my_function(x):
    if (x < 0):
        print("x is negative")

    elif (x == 0):
        print("x is zero")

    else:
        print("x is positive")