Python中调用函数简洁方法

直接上代码

def func1():
    print("func1")

def func2():
    print("func2")

def func3():
    print("func3")

def func4():
    print("func4")

func_list = [func1, func2, func3, func4]

for func in func_list:
    func()

结果如下

func1
func2
func3
func4

---

如果在项目中，假设要让用户做出选择，这么写容易扩展

def first():
    print("first option")

def second():
    print("second option")

def third():
    print("third option")

options = {
    "1": first,
    "2": second,
    "3": third
}

print("1. first   2. second    3. third")
choice = input("选择：")
func = options.get(choice)
if func:
    func()
else:
    print("无这选项")

结果如下：

1. first   2. second    3. third
选择：4
无这选项

1. first   2. second    3. third
选择：1
first option

---

其实还可以将上面的代码进行修改

def first():
    print("first option")

def second():
    print("second option")

def third():
    print("third option")

options = {
    "1": [first, "first"],
    "2": [second, "second"],
    "3": [third, "third"]
}

optionList = []
for k,v in options.items():
    option = "{}.{}".format(k, v[-1])
    optionList.append(option)
choices = "  ".join(optionList)
print(choices)

choice = input("选择：")
func = options.get(choice)
if func:
    func[0]()
else:
    print("无这选项")

结果如下

1.first  2.second  3.third
选择：5
无这选项

---

点个赞呗~