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拆开Tuple 交换位置 使用 Tuple 可以方便的交换两个数的位置，不用设临时变量。 阅读全文
posted @ 2017-07-01 21:14
2021年的顺遂平安君
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拆开Tuple lax_coordinates = (33.9425, -118.408056)latitude, longitude = lax_coordinates # tuple unpacking 交换位置 variable = (10,2... 阅读全文
posted @ 2017-07-01 21:14
2021年的顺遂平安君
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class aTest: def __repr__(self): return "This is an aTest class."a = aTest()print (a)class bTest: passb = bTest()pr... 阅读全文
posted @ 2017-07-01 18:36
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输出结果： 所以， 决定了直接打印一个实例时输出的字符串。 阅读全文
posted @ 2017-07-01 18:36
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The first thing to know about special methods is that they are meant to be called by the Python interpreter, and not by you. You don’t write my_object 阅读全文
posted @ 2017-07-01 18:25
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The first thing to know about special methods is that they are meant to be called by the Python interpreter, and not by you. Yo... 阅读全文
posted @ 2017-07-01 18:25
2021年的顺遂平安君
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a class with an abstract method cannot be instantiated (that is, we cannot create an instance by calling it) unless all of its abstract methods have b 阅读全文
posted @ 2017-07-01 12:27
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a class with an abstract method cannot be instantiated (that is, we cannot create an instance by calling it) unless all of it... 阅读全文
posted @ 2017-07-01 12:27
2021年的顺遂平安君
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