我以Mark Lutz书籍学习Python为例。用于循环索引的Python
keys = ['spam','eggs','toast']
vals=[1,4,7]
D2={}
for (v,k) in zip(keys, vals): D2[k] = v
D2
{1: 'spam', 4: 'eggs', 7: 'toast'}
我的例子:
D1={}
for (k,v) in zip(keys, vals): D1[k] = v
D1
{'toast': 7, 'eggs': 4, 'spam': 1}
所以,我还是不明白索引,为什么是(V,K)?