Detailed explanation of the steps to convert key-value string to json string

This time I will bring you the key value String Detailed explanation of the steps to convert the key value string to a json string. What are the precautions for converting the key value string to a json string? The following are Let’s take a look at practical cases.

Key-value pair characters to be converted

 var respDesc=“cardid=64157001&cardnum=1&sporder_id=PD12160428120635001&sporder_time=20160526101552”；
 var newstr = respDesc.replace("=",":\""); 
 var stringObj= "{" +newstr.replace("&","\",") + "\"}";

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