1
# 比如 @property可以使类方法转化成属性
2
class Student():
3
    def __init__(self, name):
4
        self._name = name
5
    def sname(self):
6
        return self._name
7
stu = Student('xiaoming')
8
print(stu.sname())
9
#xiaoming
10

11
class Student():
12
    def __init__(self, name):
13
        self._name = name
14
    @property
15
    def sname(self):
16
        return self._name
17
stu = Student('xiaoming')
18
print(stu.sname)
19
#xiaoming

1
from numpy import array,dot
2
a=array([[1,2],
3
        [1,2]])
4
b=array([[5,6],
5
        [5,6]])
6
print(a@b)
7
print(dot(a,b))
8

9
#[[15 18]
10
# [15 18]]
11
#[[15 18]
12
# [15 18]]