python_一切皆物件
阿新 • • 發佈：2018-12-15
From Wikipedia
這裡就解釋了deepcopy和copy的區別, eg, deepcopy把list裡面的物件複製再放入新建立的list物件當中, 但是copy只是copy list的物件, list的內容還是原來list的reference type| Language | Value type | Reference type |
|---|---|---|
| C++[3] | booleans, characters, integer numbers, floating-point numbers, arrays, classes (including strings, lists, dictionaries, sets, stacks, queues), enumerations | alias, pointers |
| Java[4] | booleans, characters, integer numbers, floating-point numbers | arrays, classes (including immutable strings, lists, dictionaries, sets, stacks, queues, enumerations), interfaces, null pointer |
| C#[5] | structures (including booleans, characters, integer numbers, floating-point numbers, fixed-point numbers, lists, dictionaries, sets, stacks, queues, optionals), enumerations | classes (including immutable strings, arrays, tuples, lists, dictionaries, sets, stacks, queues), interfaces, pointers |
| Swift[6][7] | structures (including booleans, characters, integer numbers, floating-point numbers, fixed-point numbers, immutable strings, tuples, lists, dictionaries, sets, stacks, queues), enumerations (including optionals) | functions, classes, interfaces |
| Python[8] | classes (including immutable booleans, immutable integer numbers, immutable floating-point numbers, immutable complex numbers, immutable strings, byte strings, immutable byte strings, immutable tuples, immutable ranges, immutable memory views, lists, dictionaries, sets, immutable sets, null pointer) | |
| JavaScript[9] | immutable booleans, immutable floating-point numbers, immutable symbols, immutable strings, undefined, prototypes (including lists, null pointer) | |
| OCaml[10][11] | immutable characters, immutable integer numbers, immutable floating-point numbers, immutable tuples, immutable enumerations (including immutable units, immutable booleans, immutable lists, immutable optionals), immutable exceptions, immutable formatting strings | arrays, immutable strings, byte strings, dictionaries (including pointers) |