小编mat*_*cja的帖子

from turtle import Turtle, Screen
tt_turtle_obj = Turtle()

for _ in range(15):
    tt_turtle_obj.forward(10)
    tt_turtle_obj.color("white")
    tt_turtle_obj.forward(10)
    tt_turtle_obj.color("black")

screen = Screen()
screen.exitonclick()

我用这段代码做了同样的事情。还有其他办法吗？

我想制作一个嵌套字典，但我不知道为什么我没有得到我想要的结果

def stud(data):
    empty_dic = {}
    for line in data:
       empty_dic[line["stud_num"]]={line[course]:line[marks]}
    return empty_dic
data = [
  {
   
    "course": "asd",
    "stud_num": "123",
    "marks": 28
  },
  {
    
    "course": "qrt",
    "stud_num": "123",
    "marks": 27
  },
  {
 "course": "asd",
    "stud_num": "124",
    "marks": 30
  },
  {
   "course": "zx",
    "stud_num": "124",
    "marks": 31
  },
  {
   "course": "zx",
    "stud_num": "123",
    "marks": 28
  }
]

我的代码的输出是=>{"123":{"zx":28},"124":{"zx":31}}

我想要的输出是=>{"123":{"asd":28,"qrt":27,"zx":28},124:{"asd":30,"zx":31}}