{"id":31,"date":"2024-12-27T01:39:21","date_gmt":"2024-12-27T09:39:21","guid":{"rendered":"https:\/\/xijianlong.top\/?p=31"},"modified":"2024-12-27T01:39:21","modified_gmt":"2024-12-27T09:39:21","slug":"vue3%e5%ae%9e%e7%8e%b0-%e5%85%83%e7%b4%a0%e8%bf%9b%e5%85%a5%e5%8f%af%e8%a7%86%e8%8c%83%e5%9b%b4%e5%86%85%e6%89%a7%e8%a1%8c%e5%8a%a8%e7%94%bb%e7%9a%84%e6%95%88%e6%9e%9c","status":"publish","type":"post","link":"https:\/\/xijianlong.top\/index.php\/2024\/12\/27\/vue3%e5%ae%9e%e7%8e%b0-%e5%85%83%e7%b4%a0%e8%bf%9b%e5%85%a5%e5%8f%af%e8%a7%86%e8%8c%83%e5%9b%b4%e5%86%85%e6%89%a7%e8%a1%8c%e5%8a%a8%e7%94%bb%e7%9a%84%e6%95%88%e6%9e%9c\/","title":{"rendered":"Vue3\u5b9e\u73b0 \u5143\u7d20\u8fdb\u5165\u53ef\u89c6\u8303\u56f4\u5185\u6267\u884c\u52a8\u753b\u7684\u6548\u679c"},"content":{"rendered":"\n
\"\"<\/div><\/figure>\n\n\n\n

HTML\u90e8\u5206\uff08\u4e3a\u4e86\u6548\u679c\u6574\u5f97\u6709\u70b9\u591a\uff09<\/h4>\n\n\n\n

\u601d\u8def\uff1a<\/p>\n\n\n\n

    \n
  • \u4e3a\u6bcf\u4e2a\u5143\u7d20\u7ed1\u5b9a ref \u548c :class,<\/li>\n\n\n\n
  • \u521d\u59cb\u5316\u4e00\u4e2a\u00a0visibleItems \u6570\u7ec4\uff0c\u503c\u4e3a\u5e03\u5c14\u503c<\/li>\n\n\n\n
  • \u901a\u8fc7setBoxRef\u6765\u83b7\u53d6dom\u5143\u7d20\uff0c<\/li>\n\n\n\n
  • \u4f7f\u7528\u00a0IntersectionObserver<\/code>\u00a0\u68c0\u6d4b\u6bcf\u4e2a\u5143\u7d20\u662f\u5426\u8fdb\u5165\u89c6\u53e3\uff0c\u5e76\u5728\u8fdb\u5165\u89c6\u53e3\u65f6\u8bbe\u7f6e\u00a0visibleItems<\/code>\u00a0\u7684\u503c\u4e3a\u00a0true<\/code><\/li>\n\n\n\n
  • \u5b9a\u4e49\u00a0visible<\/code>\u00a0\u7c7b\u548c\u5173\u952e\u5e27\u52a8\u753b\u00a0@keyframes<\/code>\u00a0\u6765\u5b9e\u73b0\u5143\u7d20\u7684\u8fdb\u5165\u52a8\u753b\u3002<\/li>\n<\/ul>\n\n\n\n
    <template>\n  <div class=\"container\">\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[0] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u5b57\u4f53<\/h4>\n      <div class=\"lbt_content scontent\">1<\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[1] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\"><\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[2] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\"><\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[3] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\"><\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[4] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\">123<\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[5] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\">1231<\/div>\n    <\/div>\n  <\/div>\n<\/template><\/code><\/code><\/pre>\n\n\n\n
    \u200b<\/p>\n\n\n\n
    <template>\n  <div class=\"container\">\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[0] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u5b57\u4f53<\/h4>\n      <div class=\"lbt_content scontent\">1<\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[1] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\"><\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[2] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\"><\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[3] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\"><\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[4] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\">123<\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[5] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\">1231<\/div>\n    <\/div>\n  <\/div>\n<\/template><\/code><\/pre>\n\n\n\n
    \u200b<\/p>\n\n\n\n
    <template>\n  <div class=\"container\">\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[0] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u5b57\u4f53<\/h4>\n      <div class=\"lbt_content scontent\">1<\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[1] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\"><\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[2] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\"><\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[3] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\"><\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[4] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\">123<\/div>\n    <\/div>\n    <div\n      class=\"lbt content\"\n      :ref=\"setBoxRef\"\n      :class=\"{ visible: visibleItems[5] }\"\n      style=\"opacity: 0\"\n    >\n      <h4>\u8f6e\u64ad\u56fe<\/h4>\n      <div class=\"lbt_content scontent\">1231<\/div>\n    <\/div>\n  <\/div>\n<\/template><\/code><\/pre>\n\n\n\n
    TypeScript\u90e8\u5206\u200b\u200b<\/h4>\n\n\n\n
    <script setup lang=\"ts\">\nimport { onMounted, ref, reactive } from \"vue\";\nconst visibleItems = reactive([]);\n\/* \u4fdd\u5b58\u89c2\u5bdfdom\u5143\u7d20 *\/\nconst boxrefList = reactive([]);\n\/* \u83b7\u53d6\u8981\u89c2\u5bdf\u7684dom\u5143\u7d20 *\/\nconst setBoxRef = (el: any) => {\n  if (el) {\n    boxrefList.push(el);\n  }\n};\nconst observeElements = () => {\n  const options: any = {\n    root: null, \/\/ \u89c6\u53e3\u4e3a\u6d4f\u89c8\u5668\u7a97\u53e3\n    rootMargin: \"0px\",\n    threshold: 0, \/\/ \u5f53\u5143\u7d20 0% \u53ef\u89c1\u65f6\u89e6\u53d1\n  };\n\n  const observer = new IntersectionObserver((entries) => {\n    \/*\n     *\u904d\u5386IntersectionObserverEntry\u5bf9\u8c61\n     *\u6bcf\u4e2a IntersectionObserverEntry \u5bf9\u8c61\u5305\u542b\u6709\u5173\u76ee\u6807\u5143\u7d20\u4e0e\u89c6\u53e3\u6216\u5176\u7956\u5148\u5143\u7d20\u7684\u4ea4\u53c9\u72b6\u6001\u7684\u4fe1\u606f\n     *\/\n    entries.forEach((entry) => {\n      \/* \u67e5\u627eentry.target\u5728boxrefList\u4e2d\u7684\u7d22\u5f15 *\/\n      const index = Array.from(boxrefList).indexOf(entry.target);\n      \/* entry.isIntersecting \u4e3a\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u8868\u793a\u76ee\u6807\u5143\u7d20\u662f\u5426\u4e0e\u89c6\u53e3\u6216\u5176\u7956\u5148\u5143\u7d20\u76f8\u4ea4 *\/\n\n      if (entry.isIntersecting) {\n        \/* \u5982\u679c entry.isIntersecting \u4e3a true\uff0c\u5219\u5c06 visibleItems \u5bf9\u5e94\u7d22\u5f15\u4f4d\u7f6e\u7684\u503c\u8bbe\u4e3a true\uff0c\u8868\u793a\u8be5\u5143\u7d20\u5728\u89c6\u53e3\u4e2d *\/\n        visibleItems[index] = true;\n      } else {\n        \/* \u5982\u679c entry.isIntersecting \u4e3a false\uff0c\u5219\u5c06 visibleItems \u5bf9\u5e94\u7d22\u5f15\u4f4d\u7f6e\u7684\u503c\u8bbe\u4e3a false\uff0c\u8868\u793a\u8be5\u5143\u7d20\u4e0d\u5728\u89c6\u53e3\u4e2d *\/\n        visibleItems[index] = false;\n      }\n    });\n  }, options);\n  \/* \u904d\u5386\u9700\u8981\u89c2\u5bdf\u7684\u5143\u7d20\uff0c\u7136\u540e\u901a\u8fc7observer \u6765\u89c2\u5bdfbox\u5143\u7d20 *\/\n  boxrefList.forEach((box) => {\n    observer.observe(box);\n  });\n};\nonMounted(() => {\n  observeElements();\n});\n<\/script>\n<\/code><\/pre>\n\n\n\n
    css\u90e8\u5206<\/h4>\n\n\n\n
    .container {
    .content {
    width: 100%;
    margin-bottom: 50px;
    background: white;
    box-shadow: 0px 0px 10px 1px rgba(0, 0, 0, 0.3);
    padding: 10px;
    box-sizing: border-box;
    border-radius: 20px;<\/p>\n\n\n\n
    .scontent {\n  height: 700px;\n}<\/code><\/pre>\n\n\n\n
    }
    .visible {
    opacity: 1;
    transform-origin: bottom center;
    animation: enter-animation 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    }
    \/* \u52a8\u753b *\/
    @keyframes enter-animation {
    0% {
    transform: scale(0.95) translateY(40px);
    opacity: 0;
    }<\/p>\n\n\n\n
    100% {\n  transform: scale(1) translateY(0);\n  opacity: 1;\n}<\/code><\/pre>\n\n\n\n
    }
    }<\/p>\n","protected":false},"excerpt":{"rendered":"
    HTML\u90e8\u5206\uff08\u4e3a\u4e86\u6548\u679c\u6574\u5f97\u6709\u70b9\u591a\uff09 \u601d\u8def\uff1a \u200b \u200b TypeScript\u90e8\u5206\u200b\u200b css\u90e8\u5206 .contain […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-31","post","type-post","status-publish","format-standard","hentry","category-css"],"_links":{"self":[{"href":"https:\/\/xijianlong.top\/index.php\/wp-json\/wp\/v2\/posts\/31","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xijianlong.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xijianlong.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xijianlong.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xijianlong.top\/index.php\/wp-json\/wp\/v2\/comments?post=31"}],"version-history":[{"count":1,"href":"https:\/\/xijianlong.top\/index.php\/wp-json\/wp\/v2\/posts\/31\/revisions"}],"predecessor-version":[{"id":34,"href":"https:\/\/xijianlong.top\/index.php\/wp-json\/wp\/v2\/posts\/31\/revisions\/34"}],"wp:attachment":[{"href":"https:\/\/xijianlong.top\/index.php\/wp-json\/wp\/v2\/media?parent=31"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xijianlong.top\/index.php\/wp-json\/wp\/v2\/categories?post=31"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xijianlong.top\/index.php\/wp-json\/wp\/v2\/tags?post=31"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}