題目描述我在localStorage里面儲存用戶信息userInfo，要封裝一個修改userInfo的方法相關代碼// userInfof里面有很多信息var userInfo= {    id:'123',     name:'Jim',    info:{        address:{            home:'地王大廈',            work:{               workDays:'騰訊大廈',               weekend:'阿里巴巴大廈',               festival:'百度大廈'，             },         },        money:{            balance:0,// 余額             redPacket:0,// 紅包             integral:0,// 積分                     }     } }// 比如修改localStorage.userInfo.info.address.work.workDays為京東大廈，則editFn('userInfo.info.address.work.workDays','京東大廈');// 比如修改localStorage.userInfo.info.money.balance為888，則editFn('userInfo.info.money.balance','888');