多层循环有什么好方法实现解决方案
多层循环有什么好方法实现
我有一个程序，有8个不同条件，需要用8个条件生成型号 ，我用了8层循环结果太慢了反应不过来
请问有什么好的方法吗？
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把需求描述的精细点，可能不需要多重嵌套
如果是求排列组合就更不需要了
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根据你的描述觉得可能确实不需要多重嵌套
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型号是否有字符数限制？条件字符串全连起来md5散列能满足需求吗？
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貌似你说的是排列组合，貌似还真的只能用循环，不过你可以不用多次操作数据库，你再循环里面生成sql语句，然后再循环外面一次性写入数据库，性能应该会好一些
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