The Versatile "@" Symbol in Python
The "@" symbol is a multifunctional character in Python that serves distinct purposes depending on its position in code.
Beginning of the Line
When placed at the beginning of a code line, the "@" symbol precedes decorators, which modify the behavior of classes or functions. Decorators enable you to extend or enhance the functionality of existing code without altering its original structure. Some commonly used decorators include:
Middle of the Line
An "@" appearing in the middle of a code line likely represents matrix multiplication. In Python, the "@" operator is used to calculate the dot product of two matrix objects. For example:
a = [[1, 2], [3, 4]] b = [[5, 6], [7, 8]] result = a @ b # Matrix multiplication print(result)
This code will output the following:
[[19 22] [43 50]]
The above is the detailed content of What Are the Uses of the '@' Symbol in Python?. For more information, please follow other related articles on the PHP Chinese website!