2022.02.11

Class hour 12

Memory = For storing data , Go straight with cpu hook .

The basic unit of memory = byte （1 Bytes 8 position ）

Tell the computer directly 【0x03】 The location of , It can be found immediately “100”.

Computers are identified by storage units .

char（python There is no ）： Similar to the size of a character in a string . 

 

Class hour 13

How to store a group of data of the same type —— Showing such a storage sequence , It's a sequence table .

 

Store four elements in order , There is no gap between elements , And back to 16 Bytes .

The variable name points to the first address .

 

 

The address is occupied separately 4 Bytes of . To preserve “12”, Applied for a space alone , To preserve “ab”, I applied for an address separately .

 

 

The location assigned to each storage unit is random . In short, first assign a position .

Then apply for space , To store such a sequence table .

Put four elements , Four addresses are stored , I'm going to apply for 16 Consecutive bytes to store the address .

namely , adopt “0x110” This address , find “0x200” Point to the “ab”.

At this time, this continuous storage space , All that exists is the address .

 

li【0】, The offset for the 0, That is, there is no offset .  The first thing I got was “0x324”, And then find “0x324” The data stored inside ——“0x100”. Then passed “0x100” eureka “12”.