qs.stringify与JSON.stringify的区别

let obj= {
method: "query_sql_dataset_data",
projectId: "85",
appToken: "7d22e38e-5717-11e7-907b-a6006ad3dba0",
datasetId: " 12564701"
};
console.log(qs.stringify(obj));
// method=query_sql_dataset_data&projectId=85&appToken=7d22e38e-5717-11e7-907b-a6006ad3dba0&datasetId=%2012564701
console.log(JSON.stringify(obj))
// {"method":"query_sql_dataset_data","projectId":"85","appToken":"7d22e38e-5717-11e7-907b-a6006ad3dba0","datasetId":" 12564701"}