Aniyee

python 根据序列的连续性切段

python数组元素输出

numpy中关于离散傅里叶变换

利用python读取文本文件举例：profileData = []file_object = open('profile.txt')for line in file_object: profileData.append(line)file_object.close()

numpy删除特定行或列函数numpy.delete(arr, obj, axis=None)用法objslice, int or array of intsIndicate indices of sub-arrays to remove along the specified axisaxisint, optionalaxis = 0 删除选中行；axis = 1 删除选中列；axis = None 数组展开，flattened例子np.delete(arr, [1,

图例matplotlib.pyplot.legend: https://matplotlib.org/stable/api/_as_gen/matplotlib.pyplot.legend.html#matplotlib.pyplot.legendmatplotlib.axes.Axes.legend:https://matplotlib.org/stable/api/_as_gen/matplotlib.pyplot.legend.html#matplotlib.pyplot.legendLege

(skill) 在 if 后，python将非空字符串解读为True.例子：>>> a='1'>>> if a:... print("not empty")... else:... print("empty")...not empty>>>>>> a=''>>> if a:... print("not empty")... else:... print("em