我正在处理心率数据，我想去掉当天心率从未达到的数字。
部分代码:
result_list = [
'0 instances of 44 bpm',
'0 instances of 45 bpm',
'10 instances of 46 bpm',
'22 instances of 47 bpm',
'354 instances of 65 bpm',
'20 instances of 145 bpm'
]
strip_zero = [x for x in result_list if not '0 instances' in x]
print(strip_zero)
结果:
['22 instances of 47 bpm', '354 instances of 65 bpm']
如果我使用这个:'\'0 instances' 而不是这个:'0 instances'
0 个实例都没有被删除
请您参考如下方法:
改用startswith。
result_list = [
'0 instances of 44 bpm',
'0 instances of 45 bpm',
'10 instances of 46 bpm',
'22 instances of 47 bpm',
'354 instances of 65 bpm',
'20 instances of 145 bpm'
]
strip_zero = [x for x in result_list if not x.startswith('0 instances')]
print(strip_zero)
