Question

def tax(bill):
    """Adds 8% tax to a restaurant bill."""
    bill *= 1.08
    print "With tax: %f" % bill
    return bill

def tip(bill):
    """Adds 15% tip to a restaurant bill."""
    bill *= 1.15
    print "With tip: %f" % bill
    return bill

meal_cost = 100
meal_with_tax = tax(meal_cost)
meal_with_tip = tip(meal_with_tax)

正如你在账单旁边看到的那样，账单* = 1.08。我搜索谷歌，但刚刚得到“你的搜索 - * = - 与任何文件都不匹配。”

Answer 1

这只是短暂的，

bill = bill * 1.08

示例：

>>> bill = 1.23
>>> bill *= 1.08
>>> bill
1.3284
>>> bill = 1.23
>>> bill = bill * 1.08
>>> bill
1.3284
>>>

Answer 2

bill *= 1.15

与写作相同

bill = bill * 1.15

Answer 3

它被称为赋值运算符。它将右操作数与左操作数相乘，并将结果赋给左操作数。

在Python中，* =是什么意思？从这个Codecademy assignement

3 个答案: