What is the special method in python
This article mainly explains "what are the special methods in python". Friends who are interested may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what are the special methods in python"?
There are several special methods in python
1.init method
The init method in python is used for object initialization and is often called automatically in the process of instantiating a class.
2.next method
The next method in python is used to return the next element of a specified property of the object.
3.len method
The len method in python is used to return the length of a property of an object.
4.str method
The str method in python is used to output object information, and the str method is automatically called when the print () function is used.
5.abs method
The abs method in python is used to return the absolute value of a property of an object.
6.bool method
The bool method in python is used to return the Boolean value of a property of an object.
7.complex method
The complex method in python is used to return the plural format of a property of an object.
8.floa method
The floa method in python is used to return a floating-point format for a property of an object.
9.hash method
The function of the hash method in python is to add the object to the collection or to use the object as the key of the dictionary and return the hash value of the object calculated by the hash algorithm.
10.setitem method
The setitem method in python is called when assigning a value to a specified index value or an object [start: end: step] slice.
11.delitem method
The delitem method in python is called when the specified index value is deleted or when the del object [start: end: step] slice is deleted.
12.contains method
The function of the contains method in python is to determine whether item is in a property value of an object and needs to return a Boolean result.
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