{"id":300,"date":"2026-03-19T22:33:51","date_gmt":"2026-03-19T14:33:51","guid":{"rendered":"https:\/\/www.resilence.cn\/?p=300"},"modified":"2026-03-19T22:33:51","modified_gmt":"2026-03-19T14:33:51","slug":"day-28-%e6%9c%ac%e5%9c%b0%e5%ad%98%e5%82%a8","status":"publish","type":"post","link":"https:\/\/www.resilence.cn\/?p=300","title":{"rendered":"Day-28-\u672c\u5730\u5b58\u50a8"},"content":{"rendered":"<h1>Day 28: \u672c\u5730\u5b58\u50a8<\/h1>\n<h2>\ud83c\udfaf \u5b66\u4e60\u76ee\u6807<\/h2>\n<ul>\n<li>\u7406\u89e3\u6d4f\u89c8\u5668\u672c\u5730\u5b58\u50a8\u7684\u6982\u5ff5<\/li>\n<li>\u638c\u63e1 localStorage \u548c sessionStorage \u7684\u4f7f\u7528<\/li>\n<li>\u4e86\u89e3 IndexedDB \u57fa\u7840<\/li>\n<li>\u5b66\u4f1a\u5904\u7406\u6570\u636e\u6301\u4e45\u5316<\/li>\n<\/ul>\n<h2>\ud83d\udca1 \u6838\u5fc3\u6982\u5ff5<\/h2>\n<h3>\u4e3a\u4ec0\u4e48\u9700\u8981\u672c\u5730\u5b58\u50a8\uff1f<\/h3>\n<ul>\n<li>\u4fdd\u5b58\u7528\u6237\u504f\u597d\u8bbe\u7f6e<\/li>\n<li>\u7f13\u5b58\u6570\u636e\u4ee5\u63d0\u9ad8\u6027\u80fd<\/li>\n<li>\u79bb\u7ebf\u5e94\u7528\u652f\u6301<\/li>\n<li>\u51cf\u5c11\u670d\u52a1\u5668\u8bf7\u6c42<\/li>\n<\/ul>\n<h3>\u5b58\u50a8\u65b9\u5f0f\u5bf9\u6bd4<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u7279\u6027<\/th>\n<th>Cookie<\/th>\n<th>localStorage<\/th>\n<th>sessionStorage<\/th>\n<th>IndexedDB<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5bb9\u91cf<\/td>\n<td>4KB<\/td>\n<td>5-10MB<\/td>\n<td>5-10MB<\/td>\n<td>\u5927\uff08\u51e0\u767eMB\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u8fc7\u671f<\/td>\n<td>\u624b\u52a8\u8bbe\u7f6e<\/td>\n<td>\u6c38\u4e45<\/td>\n<td>\u4f1a\u8bdd\u7ed3\u675f<\/td>\n<td>\u6c38\u4e45<\/td>\n<\/tr>\n<tr>\n<td>\u4f5c\u7528\u57df<\/td>\n<td>\u540c\u6e90<\/td>\n<td>\u540c\u6e90<\/td>\n<td>\u6807\u7b7e\u9875<\/td>\n<td>\u540c\u6e90<\/td>\n<\/tr>\n<tr>\n<td>API<\/td>\n<td>\u539f\u59cb<\/td>\n<td>\u7b80\u5355<\/td>\n<td>\u7b80\u5355<\/td>\n<td>\u590d\u6742<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\ud83d\udcdd localStorage API<\/h2>\n<h3>\u57fa\u672c\u64cd\u4f5c<\/h3>\n<h4>\u4fdd\u5b58\u6570\u636e<\/h4>\n<pre><code class=\"language-javascript\">\/\/ \u4fdd\u5b58\u5b57\u7b26\u4e32\nlocalStorage.setItem('username', '\u5f20\u4e09');\n\n\/\/ \u4fdd\u5b58\u5bf9\u8c61\uff08\u9700\u8981\u8f6c\u6362\u4e3a JSON\uff09\nconst user = {\n  name: '\u674e\u56db',\n  age: 25,\n  email: 'lisi@example.com'\n};\nlocalStorage.setItem('user', JSON.stringify(user));\n\n\/\/ \u4f7f\u7528\u5c5e\u6027\u8bed\u6cd5\nlocalStorage.theme = 'dark';\n<\/code><\/pre>\n<h4>\u8bfb\u53d6\u6570\u636e<\/h4>\n<pre><code class=\"language-javascript\">\/\/ \u8bfb\u53d6\u5b57\u7b26\u4e32\nconst username = localStorage.getItem('username');\n\n\/\/ \u8bfb\u53d6\u5bf9\u8c61\uff08\u9700\u8981\u89e3\u6790 JSON\uff09\nconst userJson = localStorage.getItem('user');\nconst user = JSON.parse(userJson);\nconsole.log(user.name); \/\/ \u674e\u56db\n\n\/\/ \u4f7f\u7528\u5c5e\u6027\u8bed\u6cd5\nconst theme = localStorage.theme;\n<\/code><\/pre>\n<h4>\u5220\u9664\u6570\u636e<\/h4>\n<pre><code class=\"language-javascript\">\/\/ \u5220\u9664\u5355\u4e2a\u9879\nlocalStorage.removeItem('username');\n\n\/\/ \u6e05\u7a7a\u6240\u6709\u6570\u636e\nlocalStorage.clear();\n<\/code><\/pre>\n<h4>\u68c0\u67e5\u6570\u636e<\/h4>\n<pre><code class=\"language-javascript\">\/\/ \u83b7\u53d6\u952e\u7684\u6570\u91cf\nconsole.log(localStorage.length); \/\/ 2\n\n\/\/ \u6839\u636e\u7d22\u5f15\u83b7\u53d6\u952e\u540d\nconst key = localStorage.key(0);\nconsole.log(key); \/\/ 'username'\n\n\/\/ \u68c0\u67e5\u67d0\u4e2a\u952e\u662f\u5426\u5b58\u5728\nif (localStorage.getItem('theme') !== null) {\n  console.log('\u4e3b\u9898\u5df2\u4fdd\u5b58');\n}\n<\/code><\/pre>\n<h2>\ud83d\udcdd sessionStorage API<\/h2>\n<p>sessionStorage \u4e0e localStorage API \u5b8c\u5168\u76f8\u540c\uff0c\u533a\u522b\u5728\u4e8e\u6570\u636e\u7684\u751f\u547d\u5468\u671f\u3002<\/p>\n<pre><code class=\"language-javascript\">\/\/ \u4fdd\u5b58\u6570\u636e\uff08\u4ec5\u5728\u5f53\u524d\u4f1a\u8bdd\u6709\u6548\uff09\nsessionStorage.setItem('tempData', '\u4e34\u65f6\u6570\u636e');\n\n\/\/ \u8bfb\u53d6\u6570\u636e\nconst data = sessionStorage.getItem('tempData');\n\n\/\/ \u5220\u9664\u6570\u636e\nsessionStorage.removeItem('tempData');\n<\/code><\/pre>\n<h2>\ud83c\udfae \u5b9e\u6218\u793a\u4f8b<\/h2>\n<h3>\u793a\u4f8b 1\uff1a\u7528\u6237\u504f\u597d\u8bbe\u7f6e\u4fdd\u5b58<\/h3>\n<pre><code class=\"language-html\">&lt;!DOCTYPE html&gt;\n&lt;html lang=&quot;zh-CN&quot;&gt;\n&lt;head&gt;\n  &lt;meta charset=&quot;UTF-8&quot;&gt;\n  &lt;title&gt;\u7528\u6237\u504f\u597d\u8bbe\u7f6e&lt;\/title&gt;\n  &lt;style&gt;\n    body {\n      font-family: Arial, sans-serif;\n      padding: 20px;\n      transition: background-color 0.3s;\n    }\n    body.light {\n      background-color: #ffffff;\n      color: #333333;\n    }\n    body.dark {\n      background-color: #1a1a1a;\n      color: #f0f0f0;\n    }\n    .settings {\n      max-width: 600px;\n      margin: 0 auto;\n      padding: 20px;\n      border-radius: 8px;\n      box-shadow: 0 2px 10px rgba(0,0,0,0.1);\n    }\n    .setting-item {\n      margin-bottom: 15px;\n      padding: 10px;\n      border-bottom: 1px solid #eee;\n    }\n    button {\n      padding: 10px 20px;\n      margin: 5px;\n      border: none;\n      border-radius: 4px;\n      cursor: pointer;\n      background-color: #007bff;\n      color: white;\n    }\n    button:hover {\n      background-color: #0056b3;\n    }\n    .message {\n      padding: 10px;\n      margin-top: 10px;\n      border-radius: 4px;\n      display: none;\n    }\n    .message.success {\n      background-color: #d4edda;\n      color: #155724;\n    }\n  &lt;\/style&gt;\n&lt;\/head&gt;\n&lt;body class=&quot;light&quot;&gt;\n  &lt;div class=&quot;settings&quot;&gt;\n    &lt;h1&gt;\u7528\u6237\u504f\u597d\u8bbe\u7f6e&lt;\/h1&gt;\n    \n    &lt;div class=&quot;setting-item&quot;&gt;\n      &lt;label&gt;\u4e3b\u9898\u9009\u62e9\uff1a&lt;\/label&gt;\n      &lt;button onclick=&quot;setTheme('light')&quot;&gt;\u6d45\u8272&lt;\/button&gt;\n      &lt;button onclick=&quot;setTheme('dark')&quot;&gt;\u6df1\u8272&lt;\/button&gt;\n    &lt;\/div&gt;\n    \n    &lt;div class=&quot;setting-item&quot;&gt;\n      &lt;label for=&quot;fontSize&quot;&gt;\u5b57\u4f53\u5927\u5c0f\uff1a&lt;\/label&gt;\n      &lt;input type=&quot;range&quot; id=&quot;fontSize&quot; min=&quot;12&quot; max=&quot;24&quot; value=&quot;16&quot; \n             onchange=&quot;setFontSize(this.value)&quot;&gt;\n      &lt;span id=&quot;fontSizeValue&quot;&gt;16px&lt;\/span&gt;\n    &lt;\/div&gt;\n    \n    &lt;div class=&quot;setting-item&quot;&gt;\n      &lt;label for=&quot;language&quot;&gt;\u8bed\u8a00\uff1a&lt;\/label&gt;\n      &lt;select id=&quot;language&quot; onchange=&quot;setLanguage(this.value)&quot;&gt;\n        &lt;option value=&quot;zh&quot;&gt;\u4e2d\u6587&lt;\/option&gt;\n        &lt;option value=&quot;en&quot;&gt;English&lt;\/option&gt;\n      &lt;\/select&gt;\n    &lt;\/div&gt;\n    \n    &lt;div id=&quot;message&quot; class=&quot;message&quot;&gt;&lt;\/div&gt;\n  &lt;\/div&gt;\n\n  &lt;script&gt;\n    \/\/ \u9875\u9762\u52a0\u8f7d\u65f6\u6062\u590d\u8bbe\u7f6e\n    function loadSettings() {\n      const theme = localStorage.getItem('theme') || 'light';\n      const fontSize = localStorage.getItem('fontSize') || '16';\n      const language = localStorage.getItem('language') || 'zh';\n      \n      applyTheme(theme);\n      applyFontSize(fontSize);\n      applyLanguage(language);\n    }\n    \n    \/\/ \u8bbe\u7f6e\u4e3b\u9898\n    function setTheme(theme) {\n      localStorage.setItem('theme', theme);\n      applyTheme(theme);\n      showMessage('\u4e3b\u9898\u5df2\u4fdd\u5b58\uff01');\n    }\n    \n    function applyTheme(theme) {\n      document.body.className = theme;\n    }\n    \n    \/\/ \u8bbe\u7f6e\u5b57\u4f53\u5927\u5c0f\n    function setFontSize(size) {\n      localStorage.setItem('fontSize', size);\n      applyFontSize(size);\n      showMessage('\u5b57\u4f53\u5927\u5c0f\u5df2\u4fdd\u5b58\uff01');\n    }\n    \n    function applyFontSize(size) {\n      document.body.style.fontSize = size + 'px';\n      document.getElementById('fontSize').value = size;\n      document.getElementById('fontSizeValue').textContent = size + 'px';\n    }\n    \n    \/\/ \u8bbe\u7f6e\u8bed\u8a00\n    function setLanguage(lang) {\n      localStorage.setItem('language', lang);\n      applyLanguage(lang);\n      showMessage('\u8bed\u8a00\u5df2\u4fdd\u5b58\uff01');\n    }\n    \n    function applyLanguage(lang) {\n      document.getElementById('language').value = lang;\n    }\n    \n    \/\/ \u663e\u793a\u6d88\u606f\n    function showMessage(text) {\n      const messageEl = document.getElementById('message');\n      messageEl.textContent = text;\n      messageEl.className = 'message success';\n      messageEl.style.display = 'block';\n      \n      setTimeout(() =&gt; {\n        messageEl.style.display = 'none';\n      }, 2000);\n    }\n    \n    \/\/ \u9875\u9762\u52a0\u8f7d\u65f6\u6062\u590d\u8bbe\u7f6e\n    window.addEventListener('load', loadSettings);\n  &lt;\/script&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;\n<\/code><\/pre>\n<h3>\u793a\u4f8b 2\uff1a\u8868\u5355\u6570\u636e\u81ea\u52a8\u4fdd\u5b58<\/h3>\n<pre><code class=\"language-html\">&lt;!DOCTYPE html&gt;\n&lt;html lang=&quot;zh-CN&quot;&gt;\n&lt;head&gt;\n  &lt;meta charset=&quot;UTF-8&quot;&gt;\n  &lt;title&gt;\u8868\u5355\u81ea\u52a8\u4fdd\u5b58&lt;\/title&gt;\n  &lt;style&gt;\n    body {\n      font-family: Arial, sans-serif;\n      max-width: 600px;\n      margin: 50px auto;\n      padding: 20px;\n    }\n    .form-group {\n      margin-bottom: 15px;\n    }\n    label {\n      display: block;\n      margin-bottom: 5px;\n      font-weight: bold;\n    }\n    input, textarea {\n      width: 100%;\n      padding: 8px;\n      border: 1px solid #ddd;\n      border-radius: 4px;\n      box-sizing: border-box;\n    }\n    textarea {\n      height: 100px;\n      resize: vertical;\n    }\n    .buttons {\n      margin-top: 20px;\n    }\n    button {\n      padding: 10px 20px;\n      margin-right: 10px;\n      border: none;\n      border-radius: 4px;\n      cursor: pointer;\n      background-color: #007bff;\n      color: white;\n    }\n    button:hover {\n      background-color: #0056b3;\n    }\n    .status {\n      margin-top: 10px;\n      padding: 10px;\n      border-radius: 4px;\n      display: none;\n    }\n    .status.saved {\n      background-color: #d4edda;\n      color: #155724;\n    }\n  &lt;\/style&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n  &lt;h1&gt;\ud83d\udcdd \u8054\u7cfb\u8868\u5355\uff08\u81ea\u52a8\u4fdd\u5b58\uff09&lt;\/h1&gt;\n  &lt;p&gt;\u60a8\u7684\u8f93\u5165\u4f1a\u81ea\u52a8\u4fdd\u5b58\u5230\u672c\u5730\u5b58\u50a8&lt;\/p&gt;\n  \n  &lt;form id=&quot;contactForm&quot;&gt;\n    &lt;div class=&quot;form-group&quot;&gt;\n      &lt;label for=&quot;name&quot;&gt;\u59d3\u540d\uff1a&lt;\/label&gt;\n      &lt;input type=&quot;text&quot; id=&quot;name&quot; name=&quot;name&quot; placeholder=&quot;\u8bf7\u8f93\u5165\u59d3\u540d&quot;&gt;\n    &lt;\/div&gt;\n    \n    &lt;div class=&quot;form-group&quot;&gt;\n      &lt;label for=&quot;email&quot;&gt;\u90ae\u7bb1\uff1a&lt;\/label&gt;\n      &lt;input type=&quot;email&quot; id=&quot;email&quot; name=&quot;email&quot; placeholder=&quot;\u8bf7\u8f93\u5165\u90ae\u7bb1&quot;&gt;\n    &lt;\/div&gt;\n    \n    &lt;div class=&quot;form-group&quot;&gt;\n      &lt;label for=&quot;phone&quot;&gt;\u7535\u8bdd\uff1a&lt;\/label&gt;\n      &lt;input type=&quot;tel&quot; id=&quot;phone&quot; name=&quot;phone&quot; placeholder=&quot;\u8bf7\u8f93\u5165\u7535\u8bdd&quot;&gt;\n    &lt;\/div&gt;\n    \n    &lt;div class=&quot;form-group&quot;&gt;\n      &lt;label for=&quot;message&quot;&gt;\u7559\u8a00\uff1a&lt;\/label&gt;\n      &lt;textarea id=&quot;message&quot; name=&quot;message&quot; placeholder=&quot;\u8bf7\u8f93\u5165\u7559\u8a00\u5185\u5bb9&quot;&gt;&lt;\/textarea&gt;\n    &lt;\/div&gt;\n    \n    &lt;div class=&quot;buttons&quot;&gt;\n      &lt;button type=&quot;submit&quot;&gt;\u63d0\u4ea4&lt;\/button&gt;\n      &lt;button type=&quot;button&quot; onclick=&quot;clearForm()&quot;&gt;\u6e05\u7a7a&lt;\/button&gt;\n    &lt;\/div&gt;\n    \n    &lt;div id=&quot;status&quot; class=&quot;status&quot;&gt;&lt;\/div&gt;\n  &lt;\/form&gt;\n\n  &lt;script&gt;\n    const STORAGE_KEY = 'contactFormData';\n    const form = document.getElementById('contactForm');\n    const statusEl = document.getElementById('status');\n    \n    \/\/ \u9875\u9762\u52a0\u8f7d\u65f6\u6062\u590d\u6570\u636e\n    window.addEventListener('load', () =&gt; {\n      const savedData = localStorage.getItem(STORAGE_KEY);\n      if (savedData) {\n        const data = JSON.parse(savedData);\n        document.getElementById('name').value = data.name || '';\n        document.getElementById('email').value = data.email || '';\n        document.getElementById('phone').value = data.phone || '';\n        document.getElementById('message').value = data.message || '';\n        showStatus('\u5df2\u6062\u590d\u4e4b\u524d\u7684\u8f93\u5165', 'saved');\n      }\n    });\n    \n    \/\/ \u76d1\u542c\u6240\u6709\u8f93\u5165\u6846\u7684\u53d8\u5316\n    const inputs = form.querySelectorAll('input, textarea');\n    inputs.forEach(input =&gt; {\n      input.addEventListener('input', saveFormData);\n    });\n    \n    \/\/ \u4fdd\u5b58\u8868\u5355\u6570\u636e\n    function saveFormData() {\n      const formData = {\n        name: document.getElementById('name').value,\n        email: document.getElementById('email').value,\n        phone: document.getElementById('phone').value,\n        message: document.getElementById('message').value\n      };\n      \n      localStorage.setItem(STORAGE_KEY, JSON.stringify(formData));\n      showStatus('\u5df2\u81ea\u52a8\u4fdd\u5b58', 'saved');\n    }\n    \n    \/\/ \u63d0\u4ea4\u8868\u5355\n    form.addEventListener('submit', (e) =&gt; {\n      e.preventDefault();\n      alert('\u8868\u5355\u5df2\u63d0\u4ea4\uff01');\n      clearForm();\n    });\n    \n    \/\/ \u6e05\u7a7a\u8868\u5355\n    function clearForm() {\n      form.reset();\n      localStorage.removeItem(STORAGE_KEY);\n      showStatus('\u5df2\u6e05\u7a7a', 'saved');\n    }\n    \n    \/\/ \u663e\u793a\u72b6\u6001\n    function showStatus(message, className) {\n      statusEl.textContent = message;\n      statusEl.className = `status ${className}`;\n      statusEl.style.display = 'block';\n      \n      setTimeout(() =&gt; {\n        statusEl.style.display = 'none';\n      }, 2000);\n    }\n  &lt;\/script&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;\n<\/code><\/pre>\n<h2>\u26a0\ufe0f \u6ce8\u610f\u4e8b\u9879<\/h2>\n<h3>1. \u5b89\u5168\u6027<\/h3>\n<ul>\n<li><strong>\u4e0d\u8981\u5b58\u50a8\u654f\u611f\u4fe1\u606f<\/strong>\uff08\u5bc6\u7801\u3001\u4fe1\u7528\u5361\u53f7\u7b49\uff09<\/li>\n<li>\u672c\u5730\u5b58\u50a8\u53ef\u4ee5\u88ab\u7528\u6237\u67e5\u770b\u548c\u4fee\u6539<\/li>\n<li>XSS \u653b\u51fb\u53ef\u4ee5\u8bfb\u53d6\u672c\u5730\u5b58\u50a8<\/li>\n<\/ul>\n<h3>2. \u6570\u636e\u7c7b\u578b<\/h3>\n<ul>\n<li>\u53ea\u80fd\u5b58\u50a8\u5b57\u7b26\u4e32<\/li>\n<li>\u5b58\u50a8\u5bf9\u8c61\u9700\u8981\u4f7f\u7528 <code>JSON.stringify()<\/code><\/li>\n<li>\u8bfb\u53d6\u5bf9\u8c61\u9700\u8981\u4f7f\u7528 <code>JSON.parse()<\/code><\/li>\n<\/ul>\n<h3>3. \u5b58\u50a8\u9650\u5236<\/h3>\n<ul>\n<li>localStorage \u901a\u5e38\u6709 5-10MB \u9650\u5236<\/li>\n<li>\u4e0d\u540c\u6d4f\u89c8\u5668\u9650\u5236\u4e0d\u540c<\/li>\n<li>\u5b58\u50a8\u6ee1\u540e\u4f1a\u629b\u51fa\u5f02\u5e38<\/li>\n<\/ul>\n<h2>\u270d\ufe0f \u7ec3\u4e60\u4efb\u52a1<\/h2>\n<h3>\u57fa\u7840\u7ec3\u4e60<\/h3>\n<ol>\n<li>\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u5f85\u529e\u4e8b\u9879\u5e94\u7528<\/li>\n<li>\u4f7f\u7528 localStorage \u4fdd\u5b58\u5f85\u529e\u4e8b\u9879<\/li>\n<li>\u5237\u65b0\u9875\u9762\u540e\u6570\u636e\u4e0d\u4e22\u5931<\/li>\n<\/ol>\n<h3>\u8fdb\u9636\u7ec3\u4e60<\/h3>\n<ol>\n<li>\u5b9e\u73b0\u5b8c\u6574\u7684\u8d2d\u7269\u8f66\u529f\u80fd<\/li>\n<li>\u6dfb\u52a0\u6570\u91cf\u4fee\u6539\u548c\u5220\u9664\u529f\u80fd<\/li>\n<li>\u5b9e\u65f6\u66f4\u65b0\u603b\u4ef7<\/li>\n<\/ol>\n<h3>\u5b9e\u6218\u6311\u6218<\/h3>\n<ol>\n<li>\u521b\u5efa\u4e00\u4e2a\u7b14\u8bb0\u5e94\u7528<\/li>\n<li>\u652f\u6301\u521b\u5efa\u3001\u7f16\u8f91\u3001\u5220\u9664\u7b14\u8bb0<\/li>\n<li>\u5b9e\u73b0\u641c\u7d22\u548c\u5206\u7c7b\u529f\u80fd<\/li>\n<li>\u6570\u636e\u6301\u4e45\u5316\u5230 localStorage<\/li>\n<\/ol>\n<h2>\ud83d\udca1 \u5e38\u89c1\u95ee\u9898<\/h2>\n<p><strong>Q: localStorage \u548c sessionStorage \u7684\u533a\u522b\uff1f<\/strong><br \/>\nA: localStorage \u6570\u636e\u6c38\u4e45\u4fdd\u5b58\uff0csessionStorage \u5728\u6807\u7b7e\u9875\u5173\u95ed\u540e\u6e05\u9664\u3002<\/p>\n<p><strong>Q: \u5982\u4f55\u6e05\u9664 localStorage \u6570\u636e\uff1f<\/strong><br \/>\nA: \u4f7f\u7528 <code>localStorage.clear()<\/code> \u6216\u6d4f\u89c8\u5668\u5f00\u53d1\u8005\u5de5\u5177\u3002<\/p>\n<p><strong>Q: localStorage \u6709\u4ec0\u4e48\u66ff\u4ee3\u65b9\u6848\uff1f<\/strong><br \/>\nA: IndexedDB \u9002\u5408\u5b58\u50a8\u5927\u91cf\u7ed3\u6784\u5316\u6570\u636e\u3002<\/p>\n<p><strong>Q: \u5982\u4f55\u68c0\u6d4b\u6d4f\u89c8\u5668\u662f\u5426\u652f\u6301 localStorage\uff1f<\/strong><br \/>\nA: \u4f7f\u7528 try-catch \u6d4b\u8bd5 <code>localStorage<\/code> \u662f\u5426\u53ef\u7528\u3002<\/p>\n<h2>\ud83d\udcda \u62d3\u5c55\u9605\u8bfb<\/h2>\n<ul>\n<li><a href=\"https:\/\/developer.mozilla.org\/zh-CN\/docs\/Web\/API\/Web_Storage_API\">MDN &#8211; Web Storage API<\/a><\/li>\n<li><a href=\"https:\/\/developer.mozilla.org\/zh-CN\/docs\/Web\/API\/IndexedDB_API\">IndexedDB \u4f7f\u7528\u6307\u5357<\/a><\/li>\n<li><a href=\"https:\/\/github.com\/Advanced-Interview-Question\/front-end-interview\/blob\/dev\/docs\/guide\/storage.md\">\u6d4f\u89c8\u5668\u5b58\u50a8\u65b9\u6848\u5bf9\u6bd4<\/a><\/li>\n<\/ul>\n<h2>\ud83d\udcdd \u603b\u7ed3<\/h2>\n<p>\u672c\u5730\u5b58\u50a8\u662f\u73b0\u4ee3 Web \u5e94\u7528\u7684\u57fa\u7840\u529f\u80fd\uff1a<\/p>\n<ul>\n<li><strong>localStorage<\/strong>: \u6c38\u4e45\u5b58\u50a8\uff0c\u9002\u5408\u7528\u6237\u504f\u597d<\/li>\n<li><strong>sessionStorage<\/strong>: \u4e34\u65f6\u5b58\u50a8\uff0c\u9002\u5408\u4f1a\u8bdd\u6570\u636e<\/li>\n<li>\u6ce8\u610f\u5b89\u5168\u6027\u548c\u5b58\u50a8\u9650\u5236<\/li>\n<li>\u5408\u7406\u4f7f\u7528\u53ef\u4ee5\u63d0\u9ad8\u5e94\u7528\u4f53\u9a8c<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Day 28: \u672c\u5730\u5b58\u50a8 \ud83c\udfaf \u5b66\u4e60\u76ee\u6807 \u7406\u89e3\u6d4f\u89c8\u5668\u672c\u5730\u5b58\u50a8\u7684\u6982\u5ff5 \u638c\u63e1 localStorage \u548c sess &#8230; <a title=\"Day-28-\u672c\u5730\u5b58\u50a8\" class=\"read-more\" href=\"https:\/\/www.resilence.cn\/?p=300\" aria-label=\"\u7ee7\u7eed\u9605\u8bfbDay-28-\u672c\u5730\u5b58\u50a8\">\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-300","post","type-post","status-publish","format-standard","hentry","category-studycoding"],"_links":{"self":[{"href":"https:\/\/www.resilence.cn\/index.php?rest_route=\/wp\/v2\/posts\/300","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.resilence.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.resilence.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.resilence.cn\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.resilence.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=300"}],"version-history":[{"count":1,"href":"https:\/\/www.resilence.cn\/index.php?rest_route=\/wp\/v2\/posts\/300\/revisions"}],"predecessor-version":[{"id":301,"href":"https:\/\/www.resilence.cn\/index.php?rest_route=\/wp\/v2\/posts\/300\/revisions\/301"}],"wp:attachment":[{"href":"https:\/\/www.resilence.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.resilence.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=300"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.resilence.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}