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39 lines
750 B
39 lines
750 B
1 year ago
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<template>
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<h3>{{ title }}</h3>
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<ul>
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<!-- 触发事件 -->
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<li v-for="(item, index) in list_data" :key="index" @click="handleClick(item)">{{ index }} - {{ item }}</li>
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</ul>
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</template>
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<script>
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export default {
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props: {
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title: String,
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list_data: {
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type: Array,
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default: () => [],
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required: true,
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validator: value => {
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return value.length >= 0
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}
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}
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},
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// 1. 注册自定义事件
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emits: ['selected'],
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methods: {
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// 2. 封装一个本地发法，用于触发$emit, $emit格式为(自定义事件名称，参数)
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handleClick(item) {
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this.$emit("selected", item);
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}
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},
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mounted() {
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console.log(this.list_data)
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}
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}
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</script>
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<style scoped>
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</style>
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