{"id":7048,"date":"2023-09-05T21:34:15","date_gmt":"2023-09-05T13:34:15","guid":{"rendered":"https:\/\/i007.vip:15443\/wordpress\/?p=7048"},"modified":"2023-09-05T21:34:15","modified_gmt":"2023-09-05T13:34:15","slug":"localstorage-%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/7048","title":{"rendered":"LocalStorage \u8be6\u89e3"},"content":{"rendered":"<p class=\"_1RuRku\"><a href=\"https:\/\/www.jianshu.com\/p\/65ac66c2e4a4\">cc from<\/a><\/p>\n<div class=\"rEsl9f\">\n<div class=\"_2mYfmT\">\n<div>\n<div class=\"_3U4Smb\"><span class=\"FxYr8x\"><a class=\"_1OhGeD\" href=\"https:\/\/www.jianshu.com\/u\/1cebbf9f202e\" target=\"_blank\" rel=\"noopener noreferrer\">\u53ef\u4e50\u524d\u7aef<\/a><\/span><button class=\"_3kba3h _1OyPqC _3Mi9q9 _34692-\" type=\"button\" data-locale=\"zh-CN\">\u5173\u6ce8<\/button><span class=\"_3URWaO\">IP\u5c5e\u5730: \u6c5f\u82cf<\/span><\/div>\n<div class=\"s-dsoj\"><time datetime=\"2018-08-21T05:09:00.000Z\">2018.08.21 13:09:00<\/time>\u5b57\u6570 1,227\u9605\u8bfb 10,754<\/div>\n<\/div>\n<\/div>\n<\/div>\n<article class=\"_2rhmJa\">\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"6720\" data-height=\"4480\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/13440876-a2b08a2d51109fe4.jpeg?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/1200\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/13440876-a2b08a2d51109fe4.jpeg\" data-original-width=\"6720\" data-original-height=\"4480\" data-original-format=\"image\/jpeg\" data-original-filesize=\"7945568\" data-image-index=\"0\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">\u56fe\u7247\u6765\u6e90 unsplash<\/div>\n<\/div>\n<blockquote><p>\u4eba\u4eec\u5c24\u5176\u504f\u7231\u201c\u4e8c\u6b21\u9009\u62e9\u201d\u8fd9\u4e2a\u5957\u8def\u3002\u201c\u7ed9\u4f60\u4e00\u6b21\u91cd\u65b0\u9009\u62e9\u7684\u673a\u4f1a\uff0c\u4f60\u4f1a\u5982\u4f55\uff1f\u201d\u201c\u5982\u679c\u2026\u2026\u4e5f\u8bb8\u4f1a\u66f4\u597d\uff1f\u201d\u5927\u90e8\u5206\u4eba\u90fd\u4f1a\u8fd9\u4e48\u60f3\u3002\u4f46\u5b9e\u9645\u4e0a\uff0c\u5e76\u4e0d\u5982\u6b64\uff0c\u653e\u5f03\u7406\u60f3\u9009\u62e9\u73b0\u5b9e\uff0c\u4f60\u4f1a\u62b1\u61be\u7ec8\u751f\uff0c\u4e3a\u4e86\u7406\u60f3\u653e\u5f03\u73b0\u5b9e\uff0c\u4f60\u4f1a\u53d1\u73b0\u7406\u60f3\u8ddf\u60f3\u7684\u4e0d\u4e00\u6837\uff1b\u4f60\u4ee5\u4e3a\u4e00\u5207\u75db\u82e6\u7684\u6839\u6e90\u662f\u6ca1\u5a36\u5230\u521d\u604b\uff0c\u5a36\u4e86\u521d\u604b\u4f60\u5c31\u4f1a\u5acc\u5f03\u5979\u53d8\u4e86\uff1b\u7ed3\u5a5a\u7684\u4eba\u7fa1\u6155\u5355\u8eab\u7684\u81ea\u7531\uff0c\u5355\u8eab\u7684\u7fa1\u6155\u7ed3\u5a5a\u7684\u966a\u4f34\u3002\u6b8a\u9014\u540c\u5f52\u3002<\/p><\/blockquote>\n<p>LocalStorage \u662f\u4e00\u79cd web \u7aef\u7684\u5b58\u50a8\u673a\u5236\uff0c\u5b83\u4f7f\u5f97\u7531 JavaScript \u7f16\u5199\u7684\u7f51\u7ad9\u6216\u8005\u5e94\u7528\u53ef\u4ee5\u65e0\u9650\u671f\u7684\u5728\u6d4f\u89c8\u5668\u4e2d\u5b58\u50a8\u5e76\u8bbf\u95ee\u6570\u636e\u3002\u4ec0\u4e48\u662f\u65e0\u9650\u671f\u5462\uff1f\u5c31\u662f\u8bf4\u5b58\u50a8\u5728\u6d4f\u89c8\u5668\u4e2d\u7684\u6570\u636e\u662f\u4f1a\u4e00\u76f4\u5b58\u5728\u7684\uff0c\u53ca\u65f6\u6d4f\u89c8\u5668\u88ab\u5173\u95ed\u4e86\u4e5f\u4e0d\u4f1a\u6d88\u5931\u3002<\/p>\n<h2>LocalStorage \u7684\u4f7f\u7528\u65b9\u6cd5<\/h2>\n<p>\u8981\u5728\u4f60\u7684 web \u5e94\u7528\u4e2d\u4f7f\u7528 LocalStorage\uff0c\u53ea\u9700\u8981\u638c\u63e1\u4ee5\u4e0b\u7684\u4e94\u79cd\u65b9\u6cd5\u5c31\u53ef\u4ee5\u4e86\uff1a<\/p>\n<p><code>setItem()<\/code>:\u00a0<strong>&#8220;\u589e\uff08\u6539\uff09&#8221;<\/strong>\uff0c\u5c06\u6570\u636e\u4ee5\u952e\u503c\u5bf9\u7684\u5f62\u5f0f\u5b58\u5230 LocalStorage \u4e2d<br \/>\n<code>getItem()<\/code>:\u00a0<strong>&#8220;\u67e5&#8221;<\/strong>\uff0c\u4ece LocalStorage \u83b7\u5f97\u5bf9\u5e94\u952e\u503c\u7684\u6570\u636e<br \/>\n<code>removeItem()<\/code>:\u00a0<strong>&#8220;\u5220&#8221;<\/strong>\uff0c\u5220\u9664 LocalStorage \u4e2d\u7ed9\u5b9a\u952e\u7684\u6570\u636e\u6761\u76ee<br \/>\n<code>clear()<\/code>: \u6e05\u7a7a LocalStorage<br \/>\n<code>key()<\/code>: \u4f20\u9012\u4e00\u4e2a\u6570\u5b57 n\uff0c\u83b7\u53d6\u7b2c n \u4e2a\u952e\u7684\u6570\u636e<\/p>\n<blockquote><p>PS: \u53ef\u4ee5\u53d1\u73b0\uff0c\u8fd9\u91cc\u5bf9\u4e8e\u6570\u636e\u7684\u5904\u7406\u4e5f\u65e0\u975e\u662f\u00a0<strong>\u201c\u589e\u5220\u6539\u67e5\u201d<\/strong>\u00a0\u56db\u4e2a\u57fa\u672c\u64cd\u4f5c\uff0c\u8fd8\u6709\u4e00\u4e2a\u662f\u6e05\u7a7a\u6570\u636e\u5e93\u7684\u64cd\u4f5c\uff0c\u6700\u540e\u4e00\u4e2a\u662f\u6839\u636e\u7d22\u5f15\u67e5\u627e\u6570\u636e\u6761\u76ee\u7684\u64cd\u4f5c\u3002<\/p><\/blockquote>\n<h3>setItem()<\/h3>\n<p>\u5c31\u50cf\u8fd9\u4e2a\u65b9\u6cd5\u7684\u540d\u4e00\u6837\uff0c\u5b83\u53ef\u4ee5\u5728 LocalStorage \u4e2d\u5b58\u50a8\u6570\u636e\u3002<\/p>\n<p>\u5b83\u4f1a\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff0c\u4e00\u4e2a key \u548c\u4e00\u4e2a value\uff0c\u901a\u8fc7 key \u53ef\u4ee5\u83b7\u53d6\u5230\u5bf9\u5e94\u7684 value\u3002<\/p>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-javascript\"><code class=\"javascript  language-javascript\">window<span class=\"token punctuation\">.<\/span>localStorage<span class=\"token punctuation\">.<\/span><span class=\"token function\">setItem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'name'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">'Cola Frontend'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<\/div>\n<p>\u5728\u8fd9\u91cc\uff0c<code>name<\/code>\u00a0\u662f\u6211\u4eec\u7684\u7ed9\u5b9a\u7684 key\uff0c\u800c\u00a0<code>Cola Frontend<\/code>\u00a0\u5c31\u662f\u4e0e\u8fd9\u4e2a\u8fd9\u4e2a key \u76f8\u5bf9\u5e94\u7684 value\u3002<strong>\u8bb0\u4f4f\uff1aLocalStorage \u53ea\u80fd\u5b58\u50a8\u5b57\u7b26\u4e32\u3002<\/strong><\/p>\n<p>\u5982\u679c\u4f60\u60f3\u8981\u5c06\u4e00\u4e2a\u5bf9\u8c61\u6216\u8005\u4e00\u4e2a\u6570\u7ec4\u5b58\u50a8\u5728 LocalStorage \u4e2d\uff0c\u4f60\u9700\u8981\u5148\u5c06\u5b83\u4eec\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u7684\u5f62\u5f0f\u3002\u5982\u4f55\u5c06\u5176\u8f6c\u4e3a\u5b57\u7b26\u4e32\u5462\uff1f\u8fd9\u91cc\u4e0d\u662f\u7b80\u5355\u5730\u00a0<code>toString()<\/code>\u00a0\u65b9\u6cd5\uff0c\u800c\u662f\u8981\u7528\u5230\u00a0<code>JSON.stringify()<\/code>\u00a0\u8fd9\u4e2a\u65b9\u6cd5\uff1a<\/p>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-javascript\"><code class=\"javascript  language-javascript\"><span class=\"token keyword\">const<\/span> developer <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\r\n  name<span class=\"token punctuation\">:<\/span> <span class=\"token string\">'Cola Frontend'<\/span><span class=\"token punctuation\">,<\/span>\r\n  skills<span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">'React'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">'Redux'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">'RxJS'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">'TypeScript'<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n\r\nwindow<span class=\"token punctuation\">.<\/span>localStorage<span class=\"token punctuation\">.<\/span><span class=\"token function\">setItem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'developer'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token constant\">JSON<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">stringify<\/span><span class=\"token punctuation\">(<\/span>developer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<\/div>\n<h3>getItem()<\/h3>\n<p>\u4f7f\u7528\u00a0<code>getItem()<\/code>\u00a0\u65b9\u6cd5\u53ef\u4ee5\u8bbf\u95ee\u5230\u5b58\u5728\u6d4f\u89c8\u5668 localStorage \u4e2d\u7684\u6570\u636e\u5bf9\u8c61\uff0c\u5b83\u4ee5 key \u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u4e14\u8fd4\u56de\u4e0e key \u76f8\u5bf9\u5e94\u7684 value\u3002\u4e0a\u9762\u63d0\u5230\u8fc7\uff0c\u8fd9\u4e2a value \u53ea\u662f\u5b57\u7b26\u4e32\uff0c\u5e76\u4e0d\u662f JavaScript \u5bf9\u8c61\u6216\u8005\u6570\u7ec4\u3002<\/p>\n<p>\u5982\u4f55\u62ff\u5230\u6211\u4eec\u521a\u624d\u5b58\u50a8\u7684\u503c\u5462\uff1f<\/p>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-javascript\"><code class=\"javascript  language-javascript\">window<span class=\"token punctuation\">.<\/span>localStorage<span class=\"token punctuation\">.<\/span><span class=\"token function\">getItem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'developer'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<\/div>\n<p>\u8fd4\u56de\u7684\u6570\u636e\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-json\"><code class=\"json  language-json\"><span class=\"token string\">\"{\"<\/span>name<span class=\"token string\">\":\"<\/span>Cola Frontend<span class=\"token string\">\",\"<\/span>skills<span class=\"token string\">\":[\"<\/span>React<span class=\"token string\">\",\"<\/span>Redux<span class=\"token string\">\",\"<\/span>RxJS<span class=\"token string\">\",\"<\/span>TypeScript<span class=\"token string\">\"]}\"<\/span>\r\n<\/code><\/pre>\n<\/div>\n<p>\u8fd9\u663e\u7136\u4e0d\u662f\u6211\u4eec\u60f3\u8981\u7684\u7ed3\u679c\uff0c\u8981\u60f3\u6b63\u5e38\u7684\u4f7f\u7528\u8fd9\u4e2a\u503c\uff0c\u4f60\u9700\u8981\u5148\u5c06\u5b83\u8f6c\u6362\u56de\u5bf9\u8c61\u7c7b\u578b\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u00a0<code>JSON.parse()<\/code>\u00a0\u6765\u5c06\u4e00\u4e2a JSON \u5b57\u7b26\u4e32\u8f6c\u6362\u6210 JavaScript \u5bf9\u8c61\uff1a<\/p>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-javascript\"><code class=\"javascript  language-javascript\"><span class=\"token constant\">JSON<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>window<span class=\"token punctuation\">.<\/span>localStorage<span class=\"token punctuation\">.<\/span><span class=\"token function\">getItem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'developer'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<\/div>\n<h3>removeItem()<\/h3>\n<p><code>removeItem()<\/code>\u00a0\u65b9\u6cd5\u4f1a\u6839\u636e\u4f20\u5165\u7684 key \u5220\u9664 localStorage \u4e2d\u5bf9\u5e94\u7684\u6570\u636e\u3002\u5982\u679c\u4e0d\u5b58\u5728\u8fd9\u4e2a key \u7684\u8bdd\uff0c\u90a3\u4e48\u5b83\u4ec0\u4e48\u90fd\u4e0d\u4f1a\u505a\u3002<\/p>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-javascript\"><code class=\"javascript  language-javascript\">window<span class=\"token punctuation\">.<\/span>localStorage<span class=\"token punctuation\">.<\/span><span class=\"token function\">removeItem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'developer'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<\/div>\n<h3>clear()<\/h3>\n<p><code>clear()<\/code>\u00a0\u65b9\u6cd5\u4f1a\u5220\u9664 domain \u5185\u6574\u4e2a localStorage \u4e2d\u7684\u6240\u6709\u8bb0\u5f55\u3002\u5b83\u6ca1\u6709\u53c2\u6570\u3002<\/p>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-javascript\"><code class=\"javascript  language-javascript\">window<span class=\"token punctuation\">.<\/span>localStorage<span class=\"token punctuation\">.<\/span><span class=\"token function\">clear<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<\/div>\n<h3>key()<\/h3>\n<p><code>key()<\/code>\u00a0\u8fd9\u4e2a\u65b9\u6cd5\u770b\u8d77\u6765\u6ca1\u4ec0\u4e48\u592a\u5927\u7684\u5fc5\u8981\uff0c\u5b83\u7684\u8bbe\u8ba1\u521d\u8877\u662f\u8ba9\u4f60\u80fd\u5f88\u65b9\u4fbf\u7684\u901a\u8fc7 keys \u904d\u5386\u6574\u4e2a localStorage\uff0c\u6216\u8005\u901a\u8fc7\u7d22\u5f15\u83b7\u53d6\u5230 key \u7684\u540d\u5b57\u3002<\/p>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-javascript\"><code class=\"javascript  language-javascript\"><span class=\"token keyword\">var<\/span> keyName <span class=\"token operator\">=<\/span> window<span class=\"token punctuation\">.<\/span>localStorage<span class=\"token punctuation\">.<\/span><span class=\"token function\">key<\/span><span class=\"token punctuation\">(<\/span>index<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<\/div>\n<h3>\u6d4f\u89c8\u5668\u652f\u6301\u60c5\u51b5<\/h3>\n<p>localStorage \u4f5c\u4e3a\u4e00\u79cd web \u7aef\u7684\u5b58\u50a8\u673a\u5236\uff0c\u88ab\u5199\u5165\u4e86 HTML5 \u7684\u8bbe\u8ba1\u89c4\u8303\u4e2d\u3002\u6240\u6709\u7684\u4e3b\u6d41\u6d4f\u89c8\u5668\u5bf9\u5b83\u90fd\u662f\u652f\u6301\u7684\uff0c\u5305\u62ec\u4e86 IE8\u3002\u4e3a\u4e86\u786e\u4fdd\u6d4f\u89c8\u5668\u652f\u6301 localStorage\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\u8fdb\u884c\u68c0\u9a8c\uff1a<\/p>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-javascript\"><code class=\"javascript  language-javascript\"><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">typeof<\/span><span class=\"token punctuation\">(<\/span>Storage<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!==<\/span> <span class=\"token string\">\"undefined\"<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token comment\">\/\/ Code for localStorage<\/span>\r\n<span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token comment\">\/\/ No web storage Support.<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<\/div>\n<h3>\u4f7f\u7528\u9650\u5236<\/h3>\n<p>\u901a\u8fc7\u4e0a\u9762\u7684\u4ecb\u7ecd\u53ef\u4ee5\u77e5\u9053\uff0c localStorage \u7528\u8d77\u6765\u662f\u5f88\u65b9\u4fbf\u7684\uff0c\u4f46\u662f\u8fd9\u79cd\u65b9\u4fbf\u5e26\u6765\u7684\u5f0a\u7aef\u5c31\u662f\u5f88\u5bb9\u6613\u9519\u8bef\u5730\u4f7f\u7528\u5b83\u3002\u9075\u5faa\u4ee5\u4e0b\u7684\u51e0\u70b9\u5efa\u8bae\uff0c\u4e0d\u8981\u5728\u8fd9\u51e0\u79cd\u60c5\u51b5\u4e0b\u4f7f\u7528 localStorage\uff1a<\/p>\n<ul>\n<li>\u4e0d\u8981\u5728 localStorage \u4e2d\u5b58\u50a8\u654f\u611f\u7684\u7528\u6237\u4fe1\u606f<\/li>\n<li>\u5b83\u4e0d\u662f\u670d\u52a1\u5668\u7aef\u6570\u636e\u5e93\u7684\u66ff\u4ee3\u54c1\uff0c\u56e0\u4e3a\u4fe1\u606f\u53ea\u4fdd\u5b58\u5728\u6d4f\u89c8\u5668\u4e2d<\/li>\n<li>localStorage \u7684\u5927\u5c0f\u4e0d\u80fd\u8d85\u8fc7 5MB\uff0c\u6240\u6709\u6d4f\u89c8\u5668\u90fd\u662f\u8fd9\u6837<\/li>\n<li>localStorage \u975e\u5e38\u6ca1\u6709\u5b89\u5168\u6027\uff0c\u5b83\u6ca1\u6709\u5bf9\u6570\u636e\u7684\u4fdd\u62a4\u673a\u5236\uff0c\u53ef\u4ee5\u88ab\u4efb\u610f\u7684 web \u7aef\u4ee3\u7801\u83b7\u53d6<\/li>\n<li>localStorage 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