代码示例

  let jsonStr=`{
    "keyWord": "",
    "page": {
      "pages": 1,
      "records": [{
        "readFlag": 0
      }],
      "size": 10,
      "a":null,
      "b":true,
      "c":[],
      "d":{}
    }
  }`
  function addMarks(jsonObj) {
    if (Array.isArray(jsonObj)) {
      for (const item of jsonObj) {
        if (typeof item==='object'&&item) {
          addMarks(item)
        }
      }
    }else{
      for (const key in jsonObj) {
        if (Object.hasOwnProperty.call(jsonObj, key)) {
          jsonObj['<'+key+'>']=jsonObj[key]
          if (typeof jsonObj[key]==='object' && jsonObj[key]) {
           addMarks(jsonObj[key])
            
          }
          delete jsonObj[key]
        }
      }
    }
    
  
  }
function delQuotes(jsonStr) {
  let jsonObj=JSON.parse(jsonStr)
  addMarks(jsonObj)
  return JSON.stringify(jsonObj).replace(/"<|>"/g,"")
  
}
console.log(delQuotes(jsonStr))

结果

{
	keyWord: "",
	page: {
		pages: 1,
		records: [{
			readFlag: 0
		}],
		size: 10,
		a: null,
		b: true,
		c: [],
		d: {}
	}
}