,2,3,1 {" id ":" 1 ", "age" : "10,20,30,10", "number" : "1,2,3,1", "name" : "a, b, c, a"}
Want to remove duplicate value in each Key
The data, for example, to solve
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To get the value, String comma split into the set, don't go
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Behind the thought of cutting into the set can be don't know how to put the data back to the value of the
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Traverse the set spell values back bai, can also direct the toString it back
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Out on the Set is directly put into actually went
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