{"id":106355,"date":"2026-09-17T08:48:34","date_gmt":"2026-09-17T00:48:34","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/106355.html"},"modified":"2026-09-17T08:48:34","modified_gmt":"2026-09-17T00:48:34","slug":"vue3-%e9%9b%b6%e5%9f%ba%e7%a1%80%e6%af%8f%e6%97%a5%e7%ac%94%e8%ae%b0%ef%bc%88036%ef%bc%89%ef%bc%9a%e5%8a%a8%e6%89%8b%e5%b0%81%e8%a3%85-usetitle-%e4%b8%8e-usetoggle-%e6%9c%80%e5%b0%8f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/106355.html","title":{"rendered":"Vue3 \u96f6\u57fa\u7840\u6bcf\u65e5\u7b14\u8bb0\uff08036\uff09\uff1a\u52a8\u624b\u5c01\u88c5 useTitle \u4e0e useToggle\u2014\u2014\u6700\u5c0f\u7684\u7ec4\u5408\u5f0f\u51fd\u6570"},"content":{"rendered":"

\u4e00\u3001\u524d\u8a00<\/h3>\n

\u4e0a\u7bc7\u61c2\u4e86"\u4e3a\u4ec0\u4e48"，\u672c\u7bc7\u5f00\u59cb"\u52a8\u624b"\u3002\u9009\u4e24\u4e2a\u6700\u7b80\u5355\u7684\u4e0b\u624b：useTitle（\u54cd\u5e94\u5f0f\u6539\u7f51\u9875\u6807\u9898）\u548c useToggle（\u5e03\u5c14\u5f00\u5173）\u3002\u9ebb\u96c0\u867d\u5c0f\u4e94\u810f\u4ff1\u5168\u2014\u2014\u8fd4\u56de\u503c\u600e\u4e48\u8bbe\u8ba1\u3001\u521d\u59cb\u503c\u600e\u4e48\u515c\u5e95\u3001\u600e\u4e48\u547d\u540d，\u7ec4\u5408\u5f0f\u51fd\u6570\u7684\u5168\u90e8\u57fa\u7840\u89c4\u8303\u90fd\u5728\u8fd9\u4e24\u4e2a\u5341\u884c\u51fd\u6570\u91cc\u3002<\/p>\n

\u4e8c\u3001useTitle：\u8ba9\u7f51\u9875\u6807\u9898\u53d8\u6210\u54cd\u5e94\u5f0f\u6570\u636e<\/h3>\n

\u76ee\u6807 API：const title = useTitle()，\u6539 title.value \u9875\u9762\u6807\u7b7e\u5b9e\u65f6\u53d8\u3002<\/p>\n

\u5148\u60f3\u6e05\u695a\u5b9e\u73b0\u4e09\u6b65：\u8bfb\u5f53\u524d\u6807\u9898\u4f5c\u521d\u59cb\u503c \u2192 \u6570\u636e\u53d8\u65f6\u5199\u56de document.title \u2192 \u8fd4\u56de\u6570\u636e\u3002<\/p>\n

\/\/ src\/composables\/useTitle.js<\/span>
\nimport<\/span> {<\/span> ref,<\/span> watch }<\/span> from<\/span> 'vue'<\/span><\/p>\n

export<\/span> function<\/span> useTitle<\/span>(<\/span>newTitle<\/span>)<\/span> {<\/span>
\n \/\/ \u521d\u59cb\u503c：\u4f20\u4e86\u5c31\u7528\u4f20\u7684，\u6ca1\u4f20\u5c31\u8bfb\u5f53\u524d\u6807\u9898<\/span>
\n const<\/span> title =<\/span> ref<\/span>(<\/span>newTitle ??<\/span> document.<\/span>title)<\/span><\/p>\n

\/\/ \u6570\u636e\u53d8 \u2192 \u5199\u56de\u6d4f\u89c8\u5668\u6807\u7b7e<\/span>
\n watch<\/span>(<\/span>title,<\/span> (<\/span>val<\/span>)<\/span> =><\/span> {<\/span>
\n document.<\/span>title =<\/span> val
\n }<\/span>,<\/span> {<\/span> immediate<\/span>:<\/span> true<\/span> }<\/span>)<\/span> \/\/ immediate：\u8fdb\u6765\u5148\u540c\u6b65\u4e00\u6b21<\/span><\/p>\n

return<\/span> title
\n}<\/span><\/p>\n

<!– \u4f7f\u7528 –>
\n<template>
\n <p>\u9875\u9762\u6807\u7b7e\u5b9e\u65f6\u53d8\u5316：<\/p>
\n <button @click="title = `（${count} \u6761\u672a\u8bfb）\u6211\u7684\u5e94\u7528`">\u6a21\u62df\u65b0\u6d88\u606f<\/button>
\n <button @click="title = '\u6211\u7684\u5e94\u7528'">\u6e05\u9664\u672a\u8bfb<\/button>
\n <p>{{ count }} \u6761\u672a\u8bfb<\/p>
\n<\/template><\/p>\n

<script setup>
\nimport { ref } from 'vue'
\nimport { useTitle } from '@\/composables\/useTitle'<\/p>\n

const count = ref(3)
\nconst title = useTitle('\u6211\u7684\u5e94\u7528')
\n<\/script><\/p>\n

\u8bbe\u8ba1\u590d\u76d8（\u6bcf\u4e2a\u7ec6\u8282\u90fd\u6709\u8bb2\u7a76）：<\/p>\n

  • newTitle ?? document.title：\u53c2\u6570\u53ef\u9009\u7684\u515c\u5e95\u5199\u6cd5，\u4e24\u79cd\u7528\u6cd5\u90fd\u652f\u6301\u2014\u2014useTitle() \u7eaf\u6258\u7ba1\u3001useTitle('xxx') \u5e26\u521d\u59cb\u503c<\/li>\n
  • immediate: true：\u4fdd\u8bc1"\u8fdb\u6765\u90a3\u4e00\u523b"\u6807\u9898\u5c31\u88ab\u540c\u6b65（\u6bd4\u5982\u63a5\u7ba1\u4e86\u4e00\u4e2a\u5df2\u7ecf\u4e71\u4e03\u516b\u7cdf\u7684\u6807\u9898）<\/li>\n
  • \u8fd4\u56de ref \u800c\u4e0d\u662f\u5b57\u7b26\u4e32：\u8fd4\u56de ref \u8c03\u7528\u65b9\u624d\u80fd\u6539\u3001\u9875\u9762\u624d\u54cd\u5e94\u2014\u2014\u7ec4\u5408\u5f0f\u51fd\u6570\u8fd4\u56de\u7684\u4e00\u5f8b\u662f"\u6d3b\u7684\u6570\u636e"<\/li>\n

    \u3010\u622a\u56fe\u4f4d\u7f6e：\u70b9\u51fb\u6309\u94ae\u540e\u6d4f\u89c8\u5668\u6807\u7b7e\u9875\u6807\u9898\u53d8\u5316\u7684\u6548\u679c\u3011<\/p>\n

    \u4e09\u3001useToggle：\u5e03\u5c14\u5f00\u5173 + \u4efb\u610f\u4e24\u503c\u5207\u6362<\/h3>\n

    \u76ee\u6807 API：const [state, toggle] = useToggle()\u2014\u2014\u6570\u7ec4\u89e3\u6784\u7684\u8fd4\u56de\u5f62\u5f0f（\u548c 012 \u7bc7 toRefs \u7684\u5bf9\u8c61\u5f62\u5f0f\u5e76\u5217，\u4e24\u79cd\u90fd\u8981\u4f1a）\u3002<\/p>\n

    \/\/ src\/composables\/useToggle.js<\/span>
    \nimport<\/span> {<\/span> ref }<\/span> from<\/span> 'vue'<\/span><\/p>\n

    export<\/span> function<\/span> useToggle<\/span>(<\/span>init =<\/span> false<\/span><\/span>)<\/span> {<\/span>
    \n const<\/span> state =<\/span> ref<\/span>(<\/span>init)<\/span><\/p>\n

    \/**
    \n * \u5207\u6362\u72b6\u6001
    \n * @param {boolean} [value] \u53ef\u9009：\u76f4\u63a5\u6307\u5b9a\u76ee\u6807\u503c
    \n *\/<\/span>
    \n function<\/span> toggle<\/span>(<\/span>value<\/span>)<\/span> {<\/span>
    \n \/\/ \u4f20\u4e86\u503c\u5c31\u7528\u4f20\u7684，\u6ca1\u4f20\u5c31\u53d6\u53cd<\/span>
    \n state.<\/span>value =<\/span> value ??<\/span> !<\/span>state.<\/span>value
    \n }<\/span><\/p>\n

    return<\/span> [<\/span>state,<\/span> toggle]<\/span>
    \n}<\/span><\/p>\n

    <template>
    \n <!– \u573a\u666f 1：\u5f00\u5173\u5f39\u7a97 –>
    \n <button @click="toggle()">\u5f39\u7a97\u5f00\u5173：{{ open ? '\u5f00' : '\u5173' }}<\/button><\/p>\n

    <!– \u573a\u666f 2：\u660e\u6587\/\u5bc6\u6587\u5207\u6362，\u76f4\u63a5\u6307\u5b9a\u503c –>
    \n <input :type="showPwd ? 'text' : 'password'" v-model="pwd" \/>
    \n <button @click="toggle(true)">\u663e\u793a\u660e\u6587<\/button>
    \n <button @click="toggle(false)">\u9690\u85cf<\/button>
    \n<\/template><\/p>\n

    <script setup>
    \nimport { useToggle } from '@\/composables\/useToggle'<\/p>\n

    const [open, toggle] = useToggle() \/\/ \u5f39\u7a97\u5f00\u5173
    \nconst [showPwd, setPwdVisible] = useToggle(false) \/\/ \u5bc6\u7801\u53ef\u89c1\u6027
    \nconst pwd = ref('')
    \n<\/script><\/p>\n

    \u8bbe\u8ba1\u590d\u76d8：<\/p>\n

  • \u8fd4\u56de\u6570\u7ec4 [state, toggle]：\u8c03\u7528\u65b9\u89e3\u6784\u65f6\u53ef\u4ee5\u968f\u610f\u91cd\u547d\u540d（toggle \/ setPwdVisible），\u6570\u7ec4\u6309\u4f4d\u7f6e\u5bf9\u53f7，\u7279\u522b\u9002\u5408"\u4e00\u6570\u636e\u4e00\u65b9\u6cd5"\u7684\u5c0f\u51fd\u6570<\/li>\n
  • value ?? !state.value：toggle() \u65e0\u53c2\u53d6\u53cd\u3001toggle(true) \u5b9a\u70b9\u8bbe\u7f6e，\u4e00\u4e2a\u51fd\u6570\u4e24\u79cd\u7528\u6cd5<\/li>\n
  • JSDoc \u6ce8\u91ca：\u5199\u4e0a\u53c2\u6570\u8bf4\u660e，\u540c\u4e8b\u7528\u4f60\u7684\u51fd\u6570\u65f6 IDE \u6709\u63d0\u793a\u2014\u2014\u534f\u4f5c\u4ece\u6ce8\u91ca\u5f00\u59cb<\/li>\n

    \u5bf9\u8c61\u5f62\u5f0f\u8fd4\u56de（\u9879\u76ee\u91cc\u7edf\u4e00\u98ce\u683c\u65f6\u7528）：<\/p>\n

    \/\/ \u540c\u4e00\u903b\u8f91\u7684\u53e6\u4e00\u79cd\u8fd4\u56de\u5f62\u6001<\/span>
    \nreturn<\/span> {<\/span> state,<\/span> toggle }<\/span>
    \n\/\/ \u4f7f\u7528：const { state, toggle } = useToggle()<\/span><\/p>\n

    \u6570\u7ec4\u5f62\u5f0f\u9002\u5408"\u5143\u7d20\u5c11\u4e14\u4f4d\u7f6e\u56fa\u5b9a"；\u5bf9\u8c61\u5f62\u5f0f\u9002\u5408\u6210\u5458\u591a\u3001\u8981\u6309\u540d\u53d6\u7528\u7684\u573a\u666f\u3002VueUse \u4e24\u79cd\u6df7\u7528（\u7b80\u5355\u51fd\u6570\u7528\u6570\u7ec4，\u590d\u6742\u7684\u7528\u5bf9\u8c61），\u4f60\u7684\u9879\u76ee\u5b9a\u6b7b\u4e00\u79cd\u5373\u53ef\u3002<\/p>\n

    \u56db\u3001\u8fdb\u9636：\u628a\u4e24\u4e2a\u51fd\u6570\u7ec4\u5408\u8d77\u6765<\/h3>\n

    \u7ec4\u5408\u5f0f\u51fd\u6570\u7684\u7cbe\u9ad3\u662f\u53ef\u4ee5\u4e92\u76f8\u7ec4\u5408\u3002\u5199\u4e00\u4e2a useDisclosure（\u5f39\u7a97\u63a7\u5236\u5668），\u5185\u90e8\u7528 useToggle：<\/p>\n

    \/\/ src\/composables\/useDisclosure.js<\/span>
    \nimport<\/span> {<\/span> useToggle }<\/span> from<\/span> '.\/useToggle'<\/span><\/p>\n

    \/**
    \n * \u5f39\u7a97\/\u62bd\u5c49\u63a7\u5236\u5668
    \n * @returns {{ isOpen: import('vue').Ref<boolean>, open: Function, close: Function, toggle: Function }}
    \n *\/<\/span>
    \nexport<\/span> function<\/span> useDisclosure<\/span>(<\/span>init =<\/span> false<\/span><\/span>)<\/span> {<\/span>
    \n const<\/span> [<\/span>isOpen,<\/span> rawToggle]<\/span> =<\/span> useToggle<\/span>(<\/span>init)<\/span><\/p>\n

    return<\/span> {<\/span>
    \n isOpen,<\/span>
    \n open<\/span>:<\/span> (<\/span>)<\/span> =><\/span> rawToggle<\/span>(<\/span>true<\/span>)<\/span>,<\/span>
    \n close<\/span>:<\/span> (<\/span>)<\/span> =><\/span> rawToggle<\/span>(<\/span>false<\/span>)<\/span>,<\/span>
    \n toggle<\/span>:<\/span> (<\/span>)<\/span> =><\/span> rawToggle<\/span>(<\/span>)<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    <template>
    \n <button @click="open">\u6253\u5f00\u786e\u8ba4\u5f39\u7a97<\/button><\/p>\n

    <div v-if="isOpen" class="mask" @click.self="close">
    \n <div class="box">
    \n \u786e\u5b9a\u8981\u5220\u9664\u5417？
    \n <button @click="close">\u53d6\u6d88<\/button>
    \n <button @click="onConfirm">\u786e\u5b9a<\/button>
    \n <\/div>
    \n <\/div>
    \n<\/template><\/p>\n

    <script setup>
    \nimport { useDisclosure } from '@\/composables\/useDisclosure'<\/p>\n

    const { isOpen, open, close } = useDisclosure()<\/p>\n

    function onConfirm() {
    \n console.log('\u6267\u884c\u5220\u9664')
    \n close()
    \n}
    \n<\/script><\/p>\n

    <style scoped>
    \n.mask { position: fixed; inset: 0; background: rgba(0,0,0,.5);
    \n display: flex; align-items: center; justify-content: center; }
    \n.box { background: #fff; padding: 20px; border-radius: 8px; }
    \n<\/style><\/p>\n

    open \/ close \/ toggle \u8bed\u4e49\u5206\u660e\u7684\u5f39\u7a97\u63a7\u5236\u5668，\u4e00\u4e2a\u9879\u76ee\u91cc\u6bcf\u4e2a\u5f39\u7a97\u90fd\u7528\u5b83\u2014\u2014\u8fd9\u5c31\u662f 031 \u7bc7 Teleport \u5f39\u7a97\u7684\u5b98\u65b9\u642d\u6863\u3002\u51fd\u6570\u8c03\u7528\u51fd\u6570，\u80fd\u529b\u4e0d\u65ad\u53e0\u52a0，\u8fd9\u5c31\u662f"\u7ec4\u5408\u5f0f"\u4e09\u4e2a\u5b57\u7684\u542b\u4e49\u3002<\/p>\n

    \u3010\u622a\u56fe\u4f4d\u7f6e：\u5f39\u7a97\u6253\u5f00\u3001\u70b9\u906e\u7f69\u5173\u95ed\u7684\u8fd0\u884c\u6548\u679c\u3011<\/p>\n

    \u4e94\u3001\u8e29\u5751\u8bb0\u5f55<\/h3>\n
  • useTitle \u5728 SSR\/\u65e0 window \u73af\u5883\u62a5\u9519：document \u4e0d\u5b58\u5728\u2014\u2014\u9700\u8981\u517c\u5bb9 SSR \u65f6\u52a0 typeof document !== 'undefined' \u5224\u65ad（\u672c\u7cfb\u5217\u8d70 SPA，\u5148\u77e5\u9053\u6709\u8fd9\u56de\u4e8b）<\/li>\n
  • \u8fd4\u56de\u4e86\u6b7b\u503c：return title.value \u8fd4\u56de\u7684\u662f\u5f53\u65f6\u7684\u5b57\u7b26\u4e32，\u8c03\u7528\u65b9\u600e\u4e48\u6539\u9875\u9762\u90fd\u4e0d\u52a8\u2014\u2014\u6c38\u8fdc\u8fd4\u56de ref<\/li>\n
  • toggle \u91cc\u7684\u5751：value ?? !state.value \u82e5\u5199\u6210 value || !state.value，\u4f20 false \u4f1a\u88ab || \u5f53 falsy \u541e\u6389\u53d8\u6210\u53d6\u53cd\u2014\u2014nullish \u5408\u5e76\u7b26（??）\u624d\u533a\u5206 false \u548c\u7a7a<\/li>\n
  • \u5fd8\u8bb0\u53ef\u9009\u62ec\u53f7：useToggle \u5b9a\u4e49\u6210 function useToggle(init) \u4f46\u8c03\u7528\u5199 useToggle()\u2014\u2014init \u662f undefined，ref(undefined) \u7684\u5e03\u5c14\u5224\u65ad\u662f false，\u6070\u597d\u80fd\u7528\u4f46\u7c7b\u578b\u4e0d\u5e72\u51c0，\u517b\u6210 init = false \u7ed9\u9ed8\u8ba4\u503c\u7684\u4e60\u60ef<\/li>\n
  • \u4e00\u4e2a\u6587\u4ef6\u585e\u5341\u4e2a\u51fd\u6570：useTitle \u548c useToggle \u6df7\u5728\u4e00\u4e2a\u6587\u4ef6\u91cc export\u2014\u2014\u4e00\u4e2a\u51fd\u6570\u4e00\u4e2a\u6587\u4ef6，index.js \u7edf\u4e00\u5bfc\u51fa，\u6309\u9700 import<\/li>\n

    \u516d\u3001\u4eca\u65e5\u5c0f\u7ed3<\/h3>\n
      \n
    • useTitle：ref + watch(immediate) \u4e09\u4ef6\u5957，\u8fd4\u56de\u6d3b ref \u662f\u94c1\u5f8b<\/li>\n
    • useToggle：[state, toggle] \u6570\u7ec4\u8fd4\u56de\u4fbf\u4e8e\u91cd\u547d\u540d；value ?? !value \u517c\u5bb9\u5b9a\u70b9\u8bbe\u7f6e<\/li>\n
    • \u8fd4\u56de\u5f62\u6001\u4e8c\u9009\u4e00：\u6570\u7ec4（\u5c0f\u800c\u56fa\u5b9a）\/ \u5bf9\u8c61（\u6210\u5458\u591a），\u9879\u76ee\u5185\u7edf\u4e00<\/li>\n
    • useDisclosure \u793a\u8303\u51fd\u6570\u7ec4\u5408\u51fd\u6570\u2014\u2014"\u7ec4\u5408\u5f0f"\u7684\u771f\u6b63\u542b\u4e49<\/li>\n<\/ul>\n

      \u4e0b\u7bc7\u9884\u544a<\/h3>\n

      \u7ee7\u7eed\u9020\u4e0b\u4e00\u7ec4：useMouse \/ useWindowSize\u2014\u2014\u7b2c\u4e00\u6b21\u5728\u7ec4\u5408\u5f0f\u51fd\u6570\u91cc\u64cd\u4f5c window \u4e8b\u4ef6\u76d1\u542c，\u751f\u547d\u5468\u671f\u6e05\u7406\u7684\u6a21\u677f\u5199\u6cd5\u4f1a\u56fa\u5316\u6210\u808c\u8089\u8bb0\u5fc6\u3002\u4e0b\u4e00\u7bc7 037\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

      \u4e00\u3001\u524d\u8a00
      \n\u4e0a\u7bc7\u61c2\u4e86\\”\u4e3a\u4ec0\u4e48\\”，\u672c\u7bc7\u5f00\u59cb\\”\u52a8\u624b\\”\u3002\u9009\u4e24\u4e2a\u6700\u7b80\u5355\u7684\u4e0b\u624b：useTitle（\u54cd\u5e94\u5f0f\u6539\u7f51\u9875\u6807\u9898）\u548c useToggle（\u5e03\u5c14\u5f00\u5173）\u3002\u9ebb\u96c0\u867d\u5c0f\u4e94\u810f\u4ff1\u5168\u2014\u2014\u8fd4\u56de\u503c\u600e\u4e48\u8bbe\u8ba1\u3001\u521d\u59cb\u503c\u600e\u4e48\u515c\u5e95\u3001\u600e\u4e48\u547d\u540d，\u7ec4\u5408\u5f0f\u51fd\u6570\u7684\u5168\u90e8\u57fa\u7840\u89c4\u8303\u90fd\u5728\u8fd9\u4e24\u4e2a\u5341\u884c\u51fd\u6570\u91cc\u3002
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