使用 Python 获取带有实例的 int 的机器限制信息

若要获取整数类型的机器限制信息，请在 Python Numpy 中使用 numpy.iinfo() 方法。第一个参数是 int_type，即获取有关其信息的一种整数数据类型。

步骤

首先，导入所需的库 −

import numpy as np

min 是给定 dtype 的最小值，max 是给定 dtype 的最小值。

使用实例检查 int16 类型 −

a = np.iinfo(np.int16(20))
print("Minimum of int16 type...\n",a.min)
print("Maximum of int16 type...\n",a.max)

使用实例检查 int32 类型 −

b = np.iinfo(np.int32(30))
print("\nMinimum of int32 type...\n",b.min)
print("Maximum of int32 type...\n",b.max)

使用实例检查 int64 类型 −

c = np.iinfo(np.int64(50))
print("\nMinimum of int64 type...\n",c.min)
print("Maximum of int64 type...\n",c.max)

示例

import numpy as np

# To get the machine limits information for integer types, use the numpy.iinfo() method in Python Numpy
# The first parameter is the int_type i.e. the kind of integer data type to get information about.

# Checking for int16 type with instances
# The min is the minimum value of given dtype.
# The max is the minimum value of given dtype.
a = np.iinfo(np.int16(20))
print("Minimum of int16 type...\n",a.min)
print("Maximum of int16 type...\n",a.max)

# Checking for int32 type with instances
b = np.iinfo(np.int32(30))
print("\nMinimum of int32 type...\n",b.min)
print("Maximum of int32 type...\n",b.max)

# Checking for int64 type with instances
c = np.iinfo(np.int64(50))
print("\nMinimum of int64 type...\n",c.min)
print("Maximum of int64 type...\n",c.max)

输出

Minimum of int16 type...
-32768
Maximum of int16 type...
32767

Minimum of int32 type...
-2147483648
Maximum of int32 type...
2147483647

Minimum of int64 type...
-9223372036854775808
Maximum of int64 type...
9223372036854775807

AmitDiwan

更新于： 2022-02-24

133 次浏览

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