同一數(shù)據(jù)Object.keys，Object.values和Object.entries獲得的個(gè)數(shù)不同使用localStoragelocalStorage.setItem(`0`,`你好`);localStorage.setItem(`1`,`再見`);localStorage.setItem(`2`,`byb`);localStorage.setItem(`name`,`nono`);console.log(Object.keys(localStorage));console.log(Object.values(localStorage));console.log(Object.entries(localStorage));console.log(`---------`);for(var a in localStorage){    console.log(localStorage[a]); }輸出結(jié)果：設(shè)置自定義對(duì)象輸出結(jié)果：