æ¹æ¡1:转å为èæ°
x=c[:,0]+c[:,1]*1j
print('转å为èæ°:',x)
print('èæ°å»éå:',np.unique(x))
print(np.unique(x,return_index=True))#return_index:è¾åºçå
ç´ ç´¢å¼å¼
idx=np.unique(x,return_index=True)[1]
print('äºç»´æ°ç»å»é:\n',c[idx])
#æ¹æ¡2:å©ç¨set
print('å»éæ¹æ¡2:\n',np.array(list(set([tuple(t) for t in c]))))
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