$listeners\u65b9\u4fbf\u9694\u4ee3\u4f20\u503c\uff0c\u7528\u4e8e\u5e95\u5c42\u7ec4\u4ef6\u5411\u9ad8\u7ea7\u5c42\u7ec4\u4ef6\u4f20\u9012\u4fe1\u606f\u3002<\/p>\n
\u4f8b\u5982\u6709 \u7236\u7ec4\u4ef6A\uff0c\u5b50\u7ec4\u4ef6B\uff0c\u5b59\u7ec4\u4ef6C \u4e09\u4e2a\u7ec4\u4ef6\uff0c\u5982\u679cC\u4f20\u9012\u4fe1\u606f\u7ed9B\u5219\u53ef\u76f4\u63a5\u4f7f\u7528$emit\uff0c\u5982\u679c\u662fC\u5411A\u4f20\u9012\u4fe1\u606f\u8fd8\u4f7f\u7528$emit,\u5219\u5c31\u9700\u8981C\u5148$emit\u7ed9B\uff0cB\u518d$emit\u7ed9A\uff0c\u8fd9\u79cd\u65b9\u5f0f\u6bd4\u8f83\u7e41\u7410\uff0c\u5219\u6b64\u65f6\u53ef\u4ee5\u4f7f\u7528v-on=”$listeners”\u6765\u6ee1\u8db3\u5f53\u524d\u9700\u6c42\u3002<\/p>\n
<\/p>\n
C\u7ec4\u4ef6<\/p>\n
<template>\r\n <div @click=\"onClick\">C\u7ec4\u4ef6<\/div>\r\n<\/template>\r\n \r\nonClick(){\r\n this.$emit(\"Msg\",'123')\r\n}<\/pre>\n <\/p>\n
B\u7ec4\u4ef6<\/p>\n
<template>\r\n <cCom v-on=\"$listeners\"\/>\r\n<\/template><\/pre>\n <\/p>\n
A\u7ec4\u4ef6<\/p>\n
<template>\r\n <bCom @Msg='Msg'\/>\r\n<\/template>\r\n \r\nmethods:{\r\n Msg(val){\r\n console.log(val) \/\/123\r\n }\r\n}<\/pre>\n <\/p>\n
\u9694\u4ee3\u4f20\u503c\u8fd9\u91cc\u8fd8\u662f\u63a8\u8350\u4f7f\u7528\uff0cevenbus<\/p>\n
Vue2\u53c2\u8003\uff0chttps:\/\/sdeno.com\/?p=6302 \uff0c\u91cc\u9762\u641c\u7d22bus<\/p>\n
vue3\uff0c<\/p>\n
npm i mitt -S\r\n\r\n\r\n\u4fee\u6539\/src\/main.js\r\nimport mitt from 'mitt'\r\napp.config.globalProperties.$bus = mitt()\r\n\r\n\r\n\r\n\u53d1\u9001\u6570\u636e\r\nmethods:{\r\n test(){\r\n this.$bus.emit('sendvalue',{a:1})\r\n }\r\n }\r\n\r\n\r\n\u63a5\u6536\u6570\u636e\r\nmounted() {\r\n this.$bus.on('sendvalue',(res)=>{\r\n console.log(res) \/\/{a:1}\r\n })\r\n}\r\n\r\nbeforeUnmount() {\r\n this.$bus.all.delete(\"sendvalue\") \/\/\u9632\u6b62\u591a\u6b21\u89e6\u53d1on\u4e8b\u4ef6\r\n},\r\nthis.$bus.on('*', (type, e) => console.log(type, e) ) \/\/\u76d1\u542c\u6240\u6709<\/pre>\n <\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
$listeners\u65b9\u4fbf\u9694\u4ee3\u4f20\u503c\uff0c\u7528\u4e8e\u5e95\u5c42\u7ec4\u4ef6\u5411\u9ad8\u7ea7\u5c42\u7ec4\u4ef6\u4f20\u9012\u4fe1\u606f\u3002 \u4f8b\u5982\u6709 \u7236\u7ec4\u4ef6A\uff0c\u5b50\u7ec4\u4ef6B\uff0c\u5b59\u7ec4\u4ef6C \u4e09 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9633","post","type-post","status-publish","format-standard","hentry","category-wordpress"],"_links":{"self":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts\/9633","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9633"}],"version-history":[{"count":0,"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts\/9633\/revisions"}],"wp:attachment":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}