我有兩個清單x=[0.0, -0.9000000000000199, 2.1499999999999773, 1.799999999999983, -1.5000000000000284, -2.3500000000000227, -3.05000000000004, 2.0999999999999943, 3.9999999999999716, 1.8499999999999943, -4.650000000000006, 11.349999999999994]y=[-5.750000000000028, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]我使用下面的邏輯來完全刪除零。但 y 的零并未完全刪除。for i in x: if i==0: x.remove(i)for j in y: if j==0: y.remove(j) print(x)print(y)我得到的輸出如下，即我的 y 列表中仍然有零。[-0.9000000000000199, 2.1499999999999773, 1.799999999999983, -1.5000000000000284, -2.3500000000000227, -3.05000000000004, 2.0999999999999943, 3.9999999999999716, 1.8499999999999943, -4.650000000000006, 11.349999999999994][-5.750000000000028, 0.0, 0.0, 0.0, 0.0, 0.0]
3 回答
慕田峪7331174
TA貢獻1828條經驗 獲得超13個贊
迭代列表時不應從列表中刪除元素。相反，使用列表理解：
x=[e for e in x if e] y=[e for e in y if e]
慕慕森
TA貢獻1856條經驗 獲得超17個贊
“remove”方法僅刪除第一次出現的提供值：
def remove(self, *args, **kwargs): # real signature unknown
"""
Remove first occurrence of value.
Raises ValueError if the value is not present.
"""
pass
要從列表中刪除所有值，您可以使用以下小方法：
def remove_all_values_from_list(l, val):
for i in range(l.count(val)):
l.remove(val)
輸出：
[-0.9000000000000199, 2.1499999999999773, 1.799999999999983, -1.5000000000000284, -2.3500000000000227, -3.05000000000004, 2.0999999999999943, 3.9999999999999716, 1.8499999999999943, -4.650000000000006, 11.349999999999994]
[-5.750000000000028]
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