通过一系列运算符进行迭代 [英] Iterate through a sequence of operators

问题描述

是否可以/是否可以像下面的示例中那样通过一系列的运算符进行迭代?

Is it possible/Is there a way to iterate through a sequence of operators as in the following example?

a, b = 5, 7
for op in (+, -, *, /):
    print(a, str(op), b, a op b)

一个可能的用例是在某种抽象数据类型上重载各种运算符的情况下对这些运算符的实现进行测试.

One possible use case is the test of the implementation of various operators on some abstract data type where these operators are overloaded.

推荐答案

您可以使用运算符模块.

You can use the operator module.

for op in [('+', operator.add), ('-', operator.sub), ('*', operator.mul), ('/', operator.div)]:
    print("{} {} {} = {}".format(a, op[0], b, op[1](a, b)))

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