能OrderedDict拿到关键位置吗?
OrderedDict
就像是list的index()
list
index()
test = ['a', 'b', 'c', 'd', 'e'] test.index('b') # return 1
python list ordereddictionary python-3.x
list ×1
ordereddictionary ×1
python ×1
python-3.x ×1