技术问答NumPy鎬庝箞閬嶅巻鏁扮粍鍏冪礌 - 扬州沐宇科技

鍦∟umPy涓紝鍙互浣跨敤杩唬鍣ㄦ潵閬嶅巻鏁扮粍鍏冪礌銆備緥濡傦紝鍙互浣跨敤nditer()鍑芥暟鏉ュ垱寤轰竴涓凯浠ｅ櫒瀵硅薄锛岀劧鍚庝娇鐢ㄥ惊鐜潵閬嶅巻鏁扮粍鍏冪礌銆?/p>

浠ヤ笅鏄竴涓ず渚嬩唬鐮侊紝婕旂ず浜嗗浣曚娇鐢?code>nditer()鍑芥暟鏉ラ亶鍘嗕竴涓簩缁存暟缁勭殑鍏冪礌锛?/p>

import numpy as np

arr = np.array([[1, 2, 3], [4, 5, 6]])

# 鍒涘缓杩唬鍣ㄥ璞?/span>
it = np.nditer(arr)

# 浣跨敤寰幆閬嶅巻鏁扮粍鍏冪礌
for x in it:
    print(x, end=' ')

# 杈撳嚭缁撴灉涓猴細1 2 3 4 5 6

鍦ㄨ凯浠ｅ櫒瀵硅薄涓紝鍙互浣跨敤it.multi_index灞炴€ф潵鑾峰彇褰撳墠鍏冪礌鐨勭储寮曚綅缃€備緥濡傦紝浠ヤ笅绀轰緥浠ｇ爜婕旂ず浜嗗浣曡幏鍙栨瘡涓厓绱犵殑绱㈠紩浣嶇疆锛?/p>

it = np.nditer(arr)

while not it.finished:
    print(it[0], it.multi_index)
    it.iternext()

# 杈撳嚭缁撴灉涓猴細
# 1 (0, 0)
# 2 (0, 1)
# 3 (0, 2)
# 4 (1, 0)
# 5 (1, 1)
# 6 (1, 2)

杩欐牱灏卞彲浠ヤ娇鐢ㄨ凯浠ｅ櫒鏉ラ亶鍘哊umPy鏁扮粍鐨勫厓绱狅紝骞朵笖鍙互鏂逛究鍦拌幏鍙栧厓绱犵殑绱㈠紩浣嶇疆銆?/p>