如何使用 f"{}" Python 简化代码

Question

我想简化我的代码，我通过 f"{}" 做到了。但是现在我需要当你点击确定项目时，切换一个具有特定数字的屏幕。但我不知道怎么做。有没有可能？

def show_bottom_sheet(self):
    bs = MDListBottomSheet()
    bs.add_item("bla bla", lambda x: x,icon='account-group-outline')

    for y in 1,2,3,4,12,13:

        bs.add_item(f"number {y} ", lambda x: self.behavior(), icon='account-group-outline'.format(y))
        bs.open()

而不是

    #bs.add_item("2", lambda x: self.behavior2(), icon='account-group-outline')
    #bs.add_item("3", lambda x: self.behavior3(),icon='account-group-outline' )
    #bs.add_item("4", lambda x: self.behavior4(),icon='account-group-outline' )
    #bs.add_item("12", lambda x: self.behavior12(),icon='account-group-outline' )
    #bs.add_item("13", lambda x: self.behavior13(), icon='account-group-outline')

我尝试了类似的方法但没有成功：

def behavior(self):
    for y in 1, 2, 3, 4, 12, 13:
        self.manager.current = f"{y}"

我以前也是这样的

def behavior2(self):
    self.manager.current = "2"
def behavior3(self):
    self.manager.current = "3"
def behavior4(self):
    self.manager.current = "4"
def behavior12(self):
    self.manager.current = "12"
def behavior13(self):
    self.manager.current = "13"
def behavior14(self):

Answer 1

我认为你的behavior()方法需要带一个参数：

bs.add_item(f"number {y} ", lambda x: self.behavior(x), icon='account-group-outline'.format(y))

...

def behavior(self, x):
    self.manager.current = f"{x}"