问题描述
例如只要含 ‘answer’ 的字段
d = {
'answer': None,
'answer1': None,
'answer2': None,
'b': None,
'c': None
}
解决方案
使用高阶函数 filter
, 自定义过滤逻辑,保留的返回 True
,去除的返回 False
d = {
'answer': None,
'answer1': None,
'answer2': None,
'b': None,
'c': None
}
def fun(data) -> bool:
'''自定义过滤逻辑
保留的返回True,去除的返回False
'''
return 'answer' in data
print(list(filter(fun, d)))
print(list(filter(lambda x: 'answer' in x, d)))
# ['answer', 'answer1', 'answer2']