參考:numpy中的ravel()、flatten()、squeeze()的用法与区别:

import numpy as np
ary = np.arange(12).reshape(3,4)
print(“ary:\n”,ary)
print(“ravel:\n”,ary.ravel())
print(“flatten:\n”,ary.flatten())
print(“reshape(-1):\n”,ary.reshape(-1))
print(‘ravel(“F”):\n’,ary.ravel(“F”))

推薦hahow線上學習python: https://igrape.net/30afN


![使用 Python 檢驗字符串格式:掌握正則表達式(Regular Expression)的起始^與終止$符號, pattern = r’^GATR[0-9]{4}$’ 使用 Python 檢驗字符串格式:掌握正則表達式(Regular Expression)的起始^與終止$符號, pattern = r’^GATR[0-9]{4}$’](https://i2.wp.com/savingking.com.tw/wp-content/uploads/2024/07/20240712093637_0.png?quality=90&zoom=2&ssl=1&resize=350%2C233)




![Python: matplotlib繪圖,如何限定座標軸範圍? plt.axis([xmin, xmax, ymin, ymax]) Python: matplotlib繪圖,如何限定座標軸範圍? plt.axis([xmin, xmax, ymin, ymax])](https://i1.wp.com/savingking.com.tw/wp-content/uploads/2023/02/20230208101745_93.jpg?quality=90&zoom=2&ssl=1&resize=350%2C233)


近期留言