basic type
Basic data types (7 types):
bool (1), short (2), int (4), long (4), float (4), double (8), char (1).
Derivation of basic data:
int8_t (char), int16_t (int), int32_t (int), int64_t (long long)
String type:
char [], char *, string
Container type:
Sequential container:
vector: fast insertion and deletion from the back, direct access to any element, continuous storage
deque: fast insertion and deletion from the front or back, direct access to any element, continuous storage
list: double linked list, fast insertion from anywhere And delete
Associated container:
set: Duplicate values are not allowed
multiset: Duplicate values are allowed
map: One-to-many mapping, fast search based on keywords,
Multimap: One-to-many mapping, fast search based on keywords, duplicate values are allowed, ie Key value may correspond to multiple values
Container adapter:
stack: last in first out
queue: first in first out
priority_queue: the highest priority element is always the first out
Generic support:
template <typename T>
