Django contrast filter and get the difference

Others 2019-11-08 23:16:36 views: null

GET:

　　Data can only pick one, if the condition of a number of data, an exception is thrown

　　 There is no data, it will throw an exception

POST:

If there is data, return QuerySet (similar may traverse an array) if there is no data to return empty (do not throw an exception)

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Origin www.cnblogs.com/zhansheng/p/11823696.html

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