for i in np.array([None, "", 1], dtype=str):
print(type(i))
for i in np.array([None, "", 1]):
print(type(i))
numpy.array 限定内部元素数据类型, 默认dtype=None 输出原来各自的type
for i in np.array([None, "", 1], dtype=str):
print(type(i))
for i in np.array([None, "", 1]):
print(type(i))
numpy.array 限定内部元素数据类型, 默认dtype=None 输出原来各自的type
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