python 笛卡尔积

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from itertools import product
for x,y,z in product([{'a':'1'}],[{'s':'1'},{'s':'2'}],[{'fp':'1'},{'fp':'5'},{'fp':'10'}]):
    print(x,y,z)

结果：

({'a': '1'}, {'s': '1'}, {'fp': '1'})
({'a': '1'}, {'s': '1'}, {'fp': '5'})
({'a': '1'}, {'s': '1'}, {'fp': '10'})
({'a': '1'}, {'s': '2'}, {'fp': '1'})
({'a': '1'}, {'s': '2'}, {'fp': '5'})
({'a': '1'}, {'s': '2'}, {'fp': '10'})