HarmonyOS 传递接受参数的标准写法有吗

传递参数

let paramArray : Array<string> = []
paramArray['placeHolder'] = '000'
this.pageInfos.pushPathByName('pageOne',paramArray)

let tmp = new TmpClass()
this.pageInfos.pushPathByName('pageOne',tmp)

接受参数

let placeHolder :Array<Array<string>> = this.pageInfos.getParamByName('pageOne')  as Array<Array<string>>
console.log('placeHolder---' + JSON.stringify(placeHolder[0]['placeHolder']))

let placeHolder_Index :Array<string> = this.pageInfos.getParamByIndex(this.pageInfos.getAllPathName().length- 1 ) as Array<string> //  取前一个
console.log('placeHolder_Index---' + JSON.stringify(placeHolder_Index['placeHolder']))