[英]Counting the occurrences of a character in each element of a list
lst = ['10010001','01101001']
我需要计算每个元素中数字“1”出现的次数
for element in lst:
print element.count("1")
>>> lst = ['10010001','01101001']
>>> [l.count('1') for l in lst]
[3, 4]
from collections import Counter
num_of_1s = [Counter(item)['1'] for item in lst]
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