使用列表理解和条件语句重写For循环

Question

I do not know how to rewrite the following loop using list/dictionary comprehension and conditional statements:

for i, sig_id in enumerate(signal_ids):
    if sig_id in aux_dict.keys():
        aux_dict[sig_id] = signal_values[i]

signal_ids and signal_values lists have same size. First element of one list corresponds to the first of the other list, and so on.

Answer 1

您可以使用以下dict理解来重现此内容

aux_dict = {sig_id : signal_values[i] for i, sig_id in enumerate(signal_ids) if sig_id in aux_dict}

Answer 2

您可以尝试以下方法：

aux_dict = {sig_id: signal_values[i] for i, sig_id in enumerate(signal_ids) if sig_id in aux_dict.keys()}