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                # localStorage緩存 <br> >[success]localStorage特征: 1.永久緩存在瀏覽器中 2.瀏覽器關閉并不會清空localStorage里面的內容,需要手動調用清除緩存方法刪除 3.setItem(key字符串,value字符串)?設置內容到localStorage里面 4.getItem(key字符串)??獲取localStorage里面key值對應的value值 5.clear()清除所有localStorage里面的值 6.存儲到localStorage里面的數據都是以字符串的形式存在存儲的 <br> ``` <script> //JSON.stringify() : 可以把對象類型轉換成字符串的形式 // JSON.parse() : 可以把字符串的對象類型轉換成真正對象 // var str = '123'; var obj = {a: 1, b: 2}; localStorage.setItem('obj', JSON.stringify(obj)); // 用來標記本次存放的數據 var strObj = localStorage.getItem('obj'); console.log(typeof strObj) console.log( JSON.parse(strObj), JSON.parse(strObj).a ) // 清除localStorage // localStorage.clear(); </script> ```
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