Question

我有一组3个函数以及一个名字列表。我试图循环这些名称并为每个名称调用一个函数。我的python看起来像这样......

def testfunc1():
    print("This is a test function 1")
    #print(name)

def testfunc2():
    print("This is a test function 2")
    #print(name)

def testfunc3():
    print("This is a test function 3")
    #print(name)


name_list = ["John", "Joe", "Paul" "George", "Mark", "Craig", "Norman"]
fn_list = [testfunc1(), testfunc2(), testfunc3() ]


for i, name in enumerate(name_list):
    [i % len(fn_list)]()
    print(name)

我希望这发生......

John   - Run testfunc1
Joe    - Run testfunc2
Paul   - Run testfunc3
George - Run testfunc1
Mark   - Run testfunc2
Craig  - Run testfunc3
Norman - Run testfunc1

我的当前代码有几个问题，第一个是目前我收到以下错误...

TypeError: 'list' object is not callable

任何人都可以帮我解决？

Answer 1

[i % len(fn_list)]()

你实际上做的是“用括号（[number]()）包围的”号码“，你需要先添加列表引用名称。

name_list = ["John", "Joe", "Paul" "George", "Mark", "Craig", "Norman"]
# You need to store the functions' references, not their return values
fn_list = [testfunc1, testfunc2, testfunc3] # remove the parentheses


for i, name in enumerate(name_list):
    (fn_list[i % len(fn_list)])() # fn_list[ ... ]
    print(name)

输出：

This is a test function 1
John
This is a test function 2
Joe
This is a test function 3
PaulGeorge
This is a test function 1
Mark
This is a test function 2
Craig
This is a test function 3
Norman

列表中每个项目的Python调用函数

1 个答案: