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2019-01-24 阅读量: 636
python如何修改外循环索引

# Python program for
# iterating array values
# using f_index

import numpy as geek

# creating an array using arrange
# method
a = geek.arange(6)

# shape array with 2 rows and
# 3 columns
a = a.reshape(2,3)

print('Original array is:')
print(a)
print()

# iterating array using f_index
# parameter
it = geek.nditer(a, flags=['f_index'])
while not it.finished:
print("%d <%d>" % (it[0], it.index), end=" ")
it.iternext()

输出:

原始数组是:
[[0 1 2]
[3 4 5]]

0 0 1 2 2 4 3 3 4 3 5 5
0.0000
3
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