Python装饰器

极简样式：

# Define a decorator
def outter(func):
    def alternative():
        # ...Some code here...
        result = func()
        # ...Some code here...
        return result

    return alternative

# Apply a decorator
@outter
def stable_method():
    pass

标准样式：

# Define a decorator
def outter(func):
    def alternative(*args, **kargs):
        # ...Some code here...
        result = func(*args, **kargs)
        # ...Some code here...
        return result

    return alternative

# Apply a decorator
@outter
def stable_method():
    pass

装饰器带参数样式：

# Define a decorator
def outter(name):
    def inner(func):
        def alternative(*args, **kargs):
            print('I can use name={} here'.format(name))
            # ...Some code here...
            result = func(*args, **kargs)
            # ...Some code here...
        return result

        return alternative
    return inner

# Apply a decorator
@outter(name='Jason')
def stable_method():
    pass
``


## 类中定义装饰器

[参考：Decorator inside Python class](https://medium.com/@vadimpushtaev/decorator-inside-python-class-1e74d23107f6)