What does python's & mean?

Various operators are often used in python code. Here I will introduce to you the & in Python. Do you want to know what it means? Then let’s find out with the editor.

& is a bitwise operator - AND, similar to | (or), ! (not).

Integers are represented by binary bits in computers. Programming languages ​​provide some operators that can directly operate the bits in integers, which are called bit operations.

The operands of these operators must be integers.

In computers, when & is used as a bit operation, 1&1=1, 1&0=0, 0&0=0;

When we usually use this rarely, we usually use To make a judgment, it is true as long as both are true. I believe you must have learned AND or NOT when you studied mathematics before. This is the same as mathematics.

PS: When you mention &, you will definitely mention &&, && is logical AND, for example, 2 conditions, boolean a=2>3&&1>3, when judging 2>3 is false, the second condition 1>3 will not be judged, and a=false will be directly judged. When using &, all two conditions will be judged, and then a will be assigned false, so generally when making logical judgments, && will be used, which is more efficient. !

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