Python3基础-staticmethod

1、python staticmethod 返回函数的静态方法。

该方法不强制要求传递参数，如下声明一个静态方法

class test:
    @staticmethod
    def f():
        print('hahhh')

test.f()  # 静态方法无需实例化
t1 = test()
t1.f()    # 也可以实例化后调用

执行结果如下

hahhh
hahhh

2、自定制的staticmethod

class StaticMethody:
    def __init__(self,func):
        self.func = func
        # print('====',self.func)

    def __get__(self, instance, owner):
        val = self.func()
        return val
class test:
    @StaticMethody  #dec =StaticMethody(dec)
    def dec():
        print('hahhh')

test.dec
t1 =test()
t1.dec

3、自定制的staticmethod,带参数

class StaticMethody:
    def __init__(self,func):
        self.func = func
        # print('====',self.func)

    def __get__(self, instance, owner):
        def feedbcak(*args,**kargs):
            val = self.func(*args,**kargs)
            return val
        return feedbcak
class test:
    @StaticMethody  #dec =StaticMethody(dec)
    def dec(name,age):
        print('hahhh',name,age)

test.dec('xiaosu',200)
t1 =test()
t1.dec('susu',10)

以上代码执行结果如下

hahhh xiaosu 200
hahhh susu 10