python 没有switch/case

python 没有switch/case，替代方法：

def func_switch_case(product_name):
    """
    switch case 示范
    :param product_name:
    :return:
    """
    switcher = {
        "book": 1,
        "pencil": 2,
        "bag": 3
    }
    return switcher.get(product_name, "nothing") #nothing表示 case的default
def func_switch_case2(product_name):
    """
    switch case 示范
    :param product_name:
    :return:
    """
    result = 0
    if product_name == "book":
        result = 1001
    if product_name == "pencil":
        result = 1002
    if product_name == "bag":
        result = 1003
    return result


# Press the green button in the gutter to run the script.
if __name__ == '__main__':
    print_hi('good day')
    main()
    product_code = func_switch_case("bag")
    print(f"bag的产品编号：{product_code}")
    product_code = func_switch_case2("pencil")
    print(f"case2_pencil的产品编号：{product_code}")

 

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