我会使用发电机：
def group(seq, sep):
g = []
for el in seq:
if el == sep:
yield g
g = []
g.append(el)
yield g
ex = ['A', 'WORD', 'B' , 'C' , 'WORD' , 'D']
result = list(group(ex, 'WORD'))
print(result)
此打印
[['A'], ['WORD', 'B', 'C'], ['WORD', 'D']]
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