使用 struct.unpack(‘类型’,byte对象) 方法，可以轻松解析byte 到具体值。类型对应的字节长度和字符串如下表
| Format | C Type | Python type | Standard size | Notes |
|---|---|---|---|---|
x |
pad byte | no value | (7) | |
c |
char | bytes of length 1 | 1 | |
b |
signed char | integer | 1 | (1), (2) |
B |
unsigned char | integer | 1 | (2) |
? |
_Bool | bool | 1 | (1) |
h |
short | integer | 2 | (2) |
H |
unsigned short | integer | 2 | (2) |
i |
int | integer | 4 | (2) |
I |
unsigned int | integer | 4 | (2) |
l |
long | integer | 4 | (2) |
L |
unsigned long | integer | 4 | (2) |
q |
long long | integer | 8 | (2) |
Q |
unsigned long long | integer | 8 | (2) |
n |
ssize_t | integer | (3) | |
N |
size_t | integer | (3) | |
e |
(6) | float | 2 | (4) |
f |
float | float | 4 | (4) |
d |
double | float | 8 | (4) |
s |
char[] | bytes | (9) | |
p |
char[] | bytes | (8) | |
P |
void* | integer | (5) |