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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                非父子組件通訊 // 定義一個空對象,用于觸發和監聽實例 var Bus = new Vue(); var A = { template: "#a", data(){ return { name:'aaa' } }, methods: { send(){ Bus.$emit('data-a',this.name); } } } var B = { template: "#b", data(){ return { age:33 } }, methods:{ send(){ Bus.$emit('data-b',this.age); } } } var C = { template:'#c', data(){ return{ name:'', age:'' } }, mounted() { // 這種寫法娶不到值 // Bus.$on('data-a',function(name){ // this.name = name; // }); // 箭頭函數this總是指向函數定義生效時所在的對象 // 注意:箭頭函數內部不會產生新的this,即就是當前實例 // 回調函數內部this為上面的空vue實例對象 Bus.$on('data-a',name \=>{ this.name = name; }); Bus.$on('data-b',age \=>{ this.age = age; }); } } var vm = null; window.onload = function(){ vm = new Vue({ el:'#my', data: { }, components:{ //局部組件 'my-a':A, 'my-b':B, 'my-c':C } }); } 組件a:{{name}} 數據發給C 組件b:{{age}} 數據發送給C 組件c:{{name}}{{age}}
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