How does the operating system interchange a and B (without the third variable, without addition and subtraction)?

Operation:    a=a^b;
    b=a^b;
    a=a^b;
Copy the code

2 How does A become 100 times as much as B? A good idea?

An operationCopy the code

3 How many bytes is int in 64-bit operating systems?

On 32-bit operating systems, int is 32 bits,4 bytesBut now people are used to int being 32 bits, so on 64-bit operating systems int is still 32 bits.64-bit integers use INT64Copy the code

4 How is float32 stored? What do you notice when you add them up?

Link 1

Link 2 (Pay attention to accuracy loss)

How does SSL work? Asymmetric encryption? What do you know about encryption?

Link 1 (HTTPS and HTTP)

Link 2 (Asymmetric encryption)

Link 3 (SSL Procedures and Encryption)

6 Process, thread, coroutine?

link

7 Git command: rebase?

Link 1

Link 2

What projects have you worked on? What role do you play?

slightly