无法插入 python 中的二维列表

Question

我正在尝试将一个元素插入到从文本文件读取的 table 数据中每一行的第一列。

grades = [[0,0,0,0,0,0],[0,0,0,0,0,0],[0,0,0,0,0,0],[0,0,0,0,0,0],[0,0,0,0,0,0],
               [0,0,0,0,0,0],[0,0,0,0,0,0],[0,0,0,0,0,0],[0,0,0,0,0,0],[0,0,0,0,0,0],
               [0,0,0,0,0,0],[0,0,0,0,0,0],[0,0,0,0,0,0],[0,0,0,0,0,0],[0,0,0,0,0,0]]
student = ["Alice Arnold", "Cory Brown", "Sean Douglas", "Pete Douglas", "Mary Fleming", "Joel Jacob",
               "Jeramy Ghouse", "Hansie Holder", "Loyola Ingenious", "Gary Jackson", "Russell Jacobson",
               "Dustan Kellart", "Carl Melone" , "Samuel Peterson", "Alec Stewart"]
code = ""
s=0
for i in file:
    pos = 9
   
    code = file.read(pos)
    info = code.split("\n")
    indexRow = info.pop()
    row = int(indexRow[0:2])   #slice the first 2 digits for row index
    col = int(indexRow[2:4])   #slice the other 2 digits for the column index 
    gr = float(indexRow[5:9])   #slice the grade
    grades[row][col] = gr
    grades[row][0] = student[s]
    s+=1

文本文件有两列，一列是四位代码，必须将其分解为二维列表中位置的适当索引。另一个是等级。每行是一个学生的成绩，我想在列表的开头插入每行第 0 列的名字。

我认为 grades[row][0] = student[s] 是将项目插入列表的合法方式，但我一直收到此行的错误“IndexError：列表索引超出范围”。不胜感激。

Answer 1

您需要使用索引而不是理解来使用 for 循环

for i in range(len(inputList()):

无法插入 python 中的二维列表

Unable to insert into 2d list in python

python

list

insert