oop

问题 I am pretty new to Python and am tackling OOP. I am a bit confused as to when to use calls to methods and classes. The sample code below outputs the average, however I am curious as to when you would use calling from the Class vs methods from a real-world perspective. I'm pretty sure this is just something that I may have yet to tackle, but it's just been a bit of a confusion as to when I would use one over the other. class Student: def __init__(self, new_name, new_grades): self.name = new

问题 I am pretty new to Python and am tackling OOP. I am a bit confused as to when to use calls to methods and classes. The sample code below outputs the average, however I am curious as to when you would use calling from the Class vs methods from a real-world perspective. I'm pretty sure this is just something that I may have yet to tackle, but it's just been a bit of a confusion as to when I would use one over the other. class Student: def __init__(self, new_name, new_grades): self.name = new

问题 I am pretty new to Python and am tackling OOP. I am a bit confused as to when to use calls to methods and classes. The sample code below outputs the average, however I am curious as to when you would use calling from the Class vs methods from a real-world perspective. I'm pretty sure this is just something that I may have yet to tackle, but it's just been a bit of a confusion as to when I would use one over the other. class Student: def __init__(self, new_name, new_grades): self.name = new

问题 I am pretty new to Python and am tackling OOP. I am a bit confused as to when to use calls to methods and classes. The sample code below outputs the average, however I am curious as to when you would use calling from the Class vs methods from a real-world perspective. I'm pretty sure this is just something that I may have yet to tackle, but it's just been a bit of a confusion as to when I would use one over the other. class Student: def __init__(self, new_name, new_grades): self.name = new

问题 I create an object with multiple properties - var objOpts = { option1: 'Option1', option2: 'Option2', option2: 'Option3' }; I then add some more properties later on - objOpts.option4 = 'Option4' objOpts.option5 = 'Option5' I'm then done with the two latter created properties ('Option4' & 'Option5') and I want to clear/delete both. Currently I'd do it like so - delete objOpts.option4 delete objOpts.option5 Is there another way to go about doing this? Imagine I'd added 5 more properties and

问题 I create an object with multiple properties - var objOpts = { option1: 'Option1', option2: 'Option2', option2: 'Option3' }; I then add some more properties later on - objOpts.option4 = 'Option4' objOpts.option5 = 'Option5' I'm then done with the two latter created properties ('Option4' & 'Option5') and I want to clear/delete both. Currently I'd do it like so - delete objOpts.option4 delete objOpts.option5 Is there another way to go about doing this? Imagine I'd added 5 more properties and

问题 I create an object with multiple properties - var objOpts = { option1: 'Option1', option2: 'Option2', option2: 'Option3' }; I then add some more properties later on - objOpts.option4 = 'Option4' objOpts.option5 = 'Option5' I'm then done with the two latter created properties ('Option4' & 'Option5') and I want to clear/delete both. Currently I'd do it like so - delete objOpts.option4 delete objOpts.option5 Is there another way to go about doing this? Imagine I'd added 5 more properties and

来源： https://stackoverflow.com/questions/64493208/use-an-array-or-arraylist-ofan-objects-so-that-all-of-its-records-from-the-file

来源： https://stackoverflow.com/questions/64586685/can-i-make-operator-virtual-to-implement-equality

来源： https://stackoverflow.com/questions/28120111/why-can-i-create-an-variable-with-type-of-parent-class