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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                瀏覽器儲存功能 概述:HTML5新增一個非常重要的功能,可以讓瀏覽器存儲一些重要的信息功能,瀏覽存儲功能分兩中:本地存儲,會話存儲 本地存儲 ## localstroage對象 ### 我們可以通過localstorage對象的一些方法,可以在瀏覽器中進行存儲,讀取數據操作等。 ### 本地儲存【localstorage】只能存儲字符串類型數據。 ### 持久化存儲數據,用localstorage ## 存儲數據語法: ``` localStorage.setItem("",""); ``` ## 讀取數據語法: ``` localStorage.getItem(""); ``` ## ## 本地會話存儲JSON方法 ``` JSON.stringify({kv對}); //JSON轉換為字符串 ``` ## --------JSON內置對象--------- ## 獲取本地存儲JSON ``` JSON.parse(); //方法把字符串JSON轉換成對象類型JSON ``` ## 本地存儲語法: ``` localStorage.setItem("你好",JSON.stringify({"第一組":1})); var bb=localStorage.getItem("你好"); console.log(JSON.parse(bb).第一組); ``` ## 數據上限為5M ## 代碼案例: ~~~ <!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> </head> <body> </body> </html> <script type="text/javascript"> localStorage.setItem("首次","向瀏覽器持久化存儲數據"); //向瀏覽器永久存儲數據 localStorage.getItem("首次"); //獲取數據 var bs=localStorage.getItem("首次"); //bs變量值為獲取的數據 console.log(bs); //打印數據 localStorage.setItem("你好",JSON.stringify({"第一組":1})); //json存儲方法 var bb=localStorage.getItem("你好"); //獲取本地存儲 console.log(JSON.parse(bb).第一組); //打印JSON值 </script> ~~~
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