返回
1
if the object
o
provides numeric protocols, and false otherwise. This function always succeeds.
3.8 版改变：
返回
1
if
o
is an index integer.
Returns the result of adding
o1
and
o2
，或
NULL
on failure. This is the equivalent of the Python expression
o1 + o2
.
Returns the result of subtracting
o2
from
o1
，或
NULL
on failure. This is the equivalent of the Python expression
o1 - o2
.
Returns the result of multiplying
o1
and
o2
，或
NULL
on failure. This is the equivalent of the Python expression
o1 * o2
.
Returns the result of matrix multiplication on
o1
and
o2
，或
NULL
on failure. This is the equivalent of the Python expression
o1 @ o2
.
Added in version 3.5.
Return the floor of
o1
divided by
o2
，或
NULL
on failure. This is the equivalent of the Python expression
o1 // o2
.
Return a reasonable approximation for the mathematical value of
o1
divided by
o2
，或
NULL
on failure. The return value is “approximate” because binary floating point numbers are approximate; it is not possible to represent all real numbers in base two. This function can return a floating point value when passed two integers. This is the equivalent of the Python expression
o1 / o2
.
Returns the remainder of dividing
o1
by
o2
，或
NULL
on failure. This is the equivalent of the Python expression
o1 % o2
.
见内置函数
divmod()
。返回
NULL
on failure. This is the equivalent of the Python expression
divmod(o1, o2)
.
见内置函数
pow()
。返回
NULL
on failure. This is the equivalent of the Python expression
pow(o1, o2, o3)
，其中
o3
is optional. If
o3
is to be ignored, pass
Py_None
in its place (passing
NULL
for
o3
would cause an illegal memory access).
Returns the negation of
o
当成功时，或
NULL
on failure. This is the equivalent of the Python expression
-o
.
返回
o
当成功时，或
NULL
on failure. This is the equivalent of the Python expression
+o
.
Returns the absolute value of
o
，或
NULL
on failure. This is the equivalent of the Python expression
abs(o)
.
Returns the bitwise negation of
o
当成功时，或
NULL
on failure. This is the equivalent of the Python expression
~o
.
Returns the result of left shifting
o1
by
o2
当成功时，或
NULL
on failure. This is the equivalent of the Python expression
o1 << o2
.
Returns the result of right shifting
o1
by
o2
当成功时，或
NULL
on failure. This is the equivalent of the Python expression
o1 >> o2
.
Returns the “bitwise and” of
o1
and
o2
on success and
NULL
on failure. This is the equivalent of the Python expression
o1 & o2
.
Returns the “bitwise exclusive or” of
o1
by
o2
当成功时，或
NULL
on failure. This is the equivalent of the Python expression
o1 ^ o2
.
Returns the “bitwise or” of
o1
and
o2
当成功时，或
NULL
on failure. This is the equivalent of the Python expression
o1 | o2
.
Returns the result of adding
o1
and
o2
，或
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 += o2
.
Returns the result of subtracting
o2
from
o1
，或
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 -= o2
.
Returns the result of multiplying
o1
and
o2
，或
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 *= o2
.
Returns the result of matrix multiplication on
o1
and
o2
，或
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 @= o2
.
Added in version 3.5.
Returns the mathematical floor of dividing
o1
by
o2
，或
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 //= o2
.
Return a reasonable approximation for the mathematical value of
o1
divided by
o2
，或
NULL
on failure. The return value is “approximate” because binary floating point numbers are approximate; it is not possible to represent all real numbers in base two. This function can return a floating point value when passed two integers. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 /= o2
.
Returns the remainder of dividing
o1
by
o2
，或
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 %= o2
.
见内置函数
pow()
。返回
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 **= o2
when o3 is
Py_None
, or an in-place variant of
pow(o1, o2, o3)
otherwise. If
o3
is to be ignored, pass
Py_None
in its place (passing
NULL
for
o3
would cause an illegal memory access).
Returns the result of left shifting
o1
by
o2
当成功时，或
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 <<= o2
.
Returns the result of right shifting
o1
by
o2
当成功时，或
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 >>= o2
.
Returns the “bitwise and” of
o1
and
o2
on success and
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 &= o2
.
Returns the “bitwise exclusive or” of
o1
by
o2
当成功时，或
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 ^= o2
.
Returns the “bitwise or” of
o1
and
o2
当成功时，或
NULL
on failure. The operation is done
in-place
当
o1
supports it. This is the equivalent of the Python statement
o1 |= o2
.
返回
o
converted to an integer object on success, or
NULL
on failure. This is the equivalent of the Python expression
int(o)
.
返回
o
converted to a float object on success, or
NULL
on failure. This is the equivalent of the Python expression
float(o)
.
返回
o
converted to a Python int on success or
NULL
采用
TypeError
引发异常当故障时。
3.10 版改变：
The result always has exact type
int
. Previously, the result could have been an instance of a subclass of
int
.
返回整数
n
converted to base
base
as a string. The
base
argument must be one of 2, 8, 10, or 16. For base 2, 8, or 16, the returned string is prefixed with a base marker of
'0b'
,
'0o'
，或
'0x'
, respectively. If
n
is not a Python int, it is converted with
PyNumber_Index()
首先。
返回
o
converted to a
Py_ssize_t
value if
o
can be interpreted as an integer. If the call fails, an exception is raised and
-1
被返回。
若
o
can be converted to a Python int but the attempt to convert to a
Py_ssize_t
value would raise an
OverflowError
, then the
exc
argument is the type of exception that will be raised (usually
IndexError
or
OverflowError
)。若
exc
is
NULL
, then the exception is cleared and the value is clipped to
PY_SSIZE_T_MIN
for a negative integer or
PY_SSIZE_T_MAX
for a positive integer.
返回
1
if
o
is an index integer (has the
nb_index
slot of the
tp_as_number
structure filled in), and
0
otherwise. This function always succeeds.
