合并2个字典并删除重复元素并减去重复元素的键值

Question

我有一个 2 个文本文件，我在其中存储字典值并读取它。所以我正在读取 file1.txt 并将值存储在 counter 变量中，对于 file2.txt 我将值存储在 counter1 变量中。当我打印 counter 和 counter1 时，它会给出以下输出。counter= {'laptop': 5, 'chair':6 , 'tv': 3}counter1= {'laptop': 2, 'chair': 4, 'tv': 4,'plant':2}p=len(counter) for z in range (0 ,p):        if (list(counter.values())[v]!=list(counter1.values())[v]):            print("Objects value on main list %s and Second List %s  "%(list(counter.items())[v],list(counter1.items())[v]))        else:             pass      v=v+1我想退掉这个：[{'laptop': 3}, {'chair': 2}, {'tv': 1}, {'plant': 2}]减去 counter 和 counter1 的值并打印结果。

Answer 1

counter= {'laptop': 5, 'chair':6 , 'tv': 3}

counter1= {'laptop': 2, 'chair': 4, 'tv': 4,'plant':2}

out = [{key : abs(counter1[key] - counter[key])} if ((key in counter) and (key in counter1)) else {key : counter[key]} if (key in counter) else {key:counter1[key]} for key in set(counter.keys() + counter1.keys())]

print out

似乎可以在 1 行中完成，这应该可行。

Answer 2

用这个

counter= {'laptop': 5, 'chair':6 , 'tv': 3}

counter1= {'laptop': 2, 'chair': 4, 'tv': 4,'plant':2}

out = []

for key, val in counter.items():

    if key in counter1:

        out.append({key:abs(val-counter1[key])})

    else:

        out.append({key:val})

for key, val in counter1.items():

    if key not in counter:

        out.append({key:val})

print(out)