{"id":8423,"date":"2023-11-28T20:27:39","date_gmt":"2023-11-28T12:27:39","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=8423"},"modified":"2023-12-02T22:43:57","modified_gmt":"2023-12-02T14:43:57","slug":"vue-zhong-jian-dan-shuo-yi-xiavue2-x-xiang-ying-sh","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/vue-zhong-jian-dan-shuo-yi-xiavue2-x-xiang-ying-sh\/","title":{"rendered":"Vue \u4e2d\u7b80\u5355\u8bf4\u4e00\u4e0b Vue2.x \u54cd\u5e94\u5f0f\u6570\u636e\u539f\u7406\uff1f"},"content":{"rendered":"

\u5728 Vue 2.x \u4e2d\uff0c\u54cd\u5e94\u5f0f\u6570\u636e\u7684\u5b9e\u73b0\u4f9d\u8d56\u4e8e Object.defineProperty \u65b9\u6cd5\uff0c\u5b83\u901a\u8fc7\u52ab\u6301\u5bf9\u8c61\u7684\u5c5e\u6027\u6765\u5b9e\u73b0\u6570\u636e\u53d8\u5316\u65f6\u901a\u77e5\u89c6\u56fe\u66f4\u65b0\u7684\u673a\u5236\u3002<\/p>\n

<\/span><\/a>Vue 2.x \u54cd\u5e94\u5f0f\u6570\u636e\u539f\u7406\uff1a<\/h3>\n
    \n
  1. \n

    \u6570\u636e\u521d\u59cb\u5316\uff1a<\/strong> \u5728 Vue \u5b9e\u4f8b\u5316\u9636\u6bb5\uff0c\u901a\u8fc7 Vue \u7684 data<\/code> \u9009\u9879\u4e2d\u5b9a\u4e49\u7684\u6570\u636e\u5bf9\u8c61\u3002<\/p>\n<\/li>\n

  2. \n

    \u6570\u636e\u52ab\u6301\uff1a<\/strong> Vue \u5728\u521d\u59cb\u5316\u9636\u6bb5\u4f1a\u904d\u5386 data<\/code> \u4e2d\u7684\u5c5e\u6027\uff0c\u4f7f\u7528 Object.defineProperty<\/code> \u65b9\u6cd5\u5bf9\u6bcf\u4e2a\u5c5e\u6027\u8fdb\u884c\u52ab\u6301\uff08\u5373\u5bf9\u5c5e\u6027\u8fdb\u884c getter \u548c setter \u7684\u5b9a\u4e49\uff09\u3002<\/p>\n<\/li>\n

  3. \n

    getter \u548c setter\uff1a<\/strong><\/p>\n

      \n
    • getter\uff1a<\/strong> \u5f53\u8bbf\u95ee\u6570\u636e\u5c5e\u6027\u65f6\uff0cgetter \u8d1f\u8d23\u6536\u96c6\u4f9d\u8d56\u3002<\/li>\n
    • setter\uff1a<\/strong> \u5f53\u4fee\u6539\u6570\u636e\u5c5e\u6027\u65f6\uff0csetter \u8d1f\u8d23\u89e6\u53d1\u4f9d\u8d56\u7684\u66f4\u65b0\u3002\u5f53\u6570\u636e\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u4f1a\u901a\u77e5\u6240\u6709\u4f9d\u8d56\u8fd9\u4e2a\u5c5e\u6027\u7684\u5730\u65b9\u53bb\u66f4\u65b0\u89c6\u56fe\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \n

      \u4f9d\u8d56\u6536\u96c6\uff1a<\/strong> Vue \u901a\u8fc7 Watcher \u5bf9\u8c61\u6765\u8fdb\u884c\u4f9d\u8d56\u6536\u96c6\uff0c\u5f53\u4e00\u4e2a\u5c5e\u6027\u88ab\u8bbf\u95ee\uff08\u88ab\u8bfb\u53d6\uff09\u65f6\uff0cWatcher \u4f1a\u5c06\u5f53\u524d\u7ec4\u4ef6\u5b9e\u4f8b\u4e0e\u8be5\u5c5e\u6027\u5173\u8054\u8d77\u6765\u3002<\/p>\n<\/li>\n

    • \n

      \u66f4\u65b0\u89c6\u56fe\uff1a<\/strong> \u5f53\u6570\u636e\u53d1\u751f\u53d8\u5316\u65f6\uff0csetter \u88ab\u8c03\u7528\uff0c\u4f1a\u901a\u77e5 Watcher \u6267\u884c\u66f4\u65b0\uff0c\u8fdb\u800c\u89e6\u53d1\u89c6\u56fe\u7684\u91cd\u65b0\u6e32\u67d3\u3002<\/p>\n<\/li>\n<\/ol>\n

      \u8fd9\u79cd\u57fa\u4e8e\u6570\u636e\u52ab\u6301\u7684\u65b9\u5f0f\u80fd\u591f\u8ba9 Vue \u76d1\u542c\u6570\u636e\u7684\u53d8\u5316\uff0c\u5e76\u4e14\u81ea\u52a8\u66f4\u65b0\u89c6\u56fe\uff0c\u5b9e\u73b0\u4e86\u6570\u636e\u4e0e\u89c6\u56fe\u7684\u540c\u6b65\u3002\u8fd9\u79cd\u54cd\u5e94\u5f0f\u7684\u7279\u6027\u8ba9\u5f00\u53d1\u8005\u65e0\u9700\u624b\u52a8\u64cd\u4f5c DOM\uff0c\u63d0\u9ad8\u4e86\u5f00\u53d1\u6548\u7387\u548c\u4ee3\u7801\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

      \u5728 Vue 2.x \u4e2d\uff0c\u54cd\u5e94\u5f0f\u6570\u636e\u7684\u5b9e\u73b0\u4f9d\u8d56\u4e8e Object.defineProperty \u65b9\u6cd5\uff0c\u5b83\u901a\u8fc7\u52ab\u6301\u5bf9 […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-8423","post","type-post","status-publish","format-standard","hentry","category-vue"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8423","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=8423"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8423\/revisions"}],"predecessor-version":[{"id":14112,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8423\/revisions\/14112"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=8423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=8423"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=8423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}