如何在python中替换列表列表

Question

我有一张单子

listoflist = [[['I', 'nvestment activity during the year is summarised as fol', 'l', 'ows:'],
              ['InterFace-Light', 'InterFace-Light', 'InterFace-Light', 'InterFace-Light'], 
              [[9.0], [9.0], [9.0], [9.0]]], 
              [(45.40929412841797, 167.94473266601562, 49.90929412841797, 178.0337371826172), 
               (47.360496520996094, 167.94473266601562, 241.59832763671875, 178.0337371826172), 
               (238.8065185546875, 167.94473266601562, 243.3065185546875, 178.0337371826172), 
               (240.51470947265625, 167.94473266601562, 259.0223083496094, 178.0337371826172)]]

              [[['Cost'], 
               ['InterFace-Bold'],
               [[9.0]]], 
               [(526.6923828125, 189.15679931640625, 544.8453979492188, 199.52481079101562)]]

              [[['Additions', '£’', '000'], ['InterFace-Bold', 'InterFace-Bold', 'InterFace-Bold'], 
               [[9.0], [9.0], [9.0]]], 
               [(56.747901916503906, 199.1571044921875, 95.19589233398438, 209.52511596679688), 
                (523.3358154296875, 199.1571044921875, 532.69580078125, 209.52511596679688), 
                (530.2658081054688, 199.1571044921875, 544.8457641601562, 209.52511596679688)]]]

我想用['Investment activity during the year is summarised as follows:'], ['Cost'], ['Additions', '£’000']替换listoflist[0][0][0]

这是我目前的代码：

new_list = [['Investment activity during the year is summarised as follows:'],
            ['Cost'],
            ['Additions', '£’000']]

for i in listoflist:
    i[0].pop(0)
    for ii in new_list:
       i[0].insert(0, ii)

Replacing values in list of list Python没用

Answer 1

根据您要执行的操作（替换或插入），这里有两个选项：
插入：

for ls in listoflist:
    ls.insert(0, "Investment activity during the year is summarised as follows:")

要替换：

for ls in listoflist:
    ls[0] = "Investment activity during the year is summarised as follows:"

编辑：
替换：

listoflist[0][0] = "value1"
listoflist[1][0] = "value2"
listoflist[2][0] = "value3"

插入：

listoflist[0].insert(0, "value1")

我想我终于明白你想做什么了：

for ls in listoflist:
    if ls[0] == ["I", "nvestment activity during the year is summarised as fol", "l", "ows:"]:
        ls[0] = new_list[0]
    elif ls[0][0] == ["Cost"]:
        ls[0] = new_list[1]
    elif ls[0][0] == ["Additions", "£’", "000"]:
        ls[0] = new_list[2]