feat 添加自定义下拉列表

admin-fe/src/components/select/Select.vue

@@ -15,6 +15,8 @@
 <script lang="ts">
 import ArrowDown from "../icon/ArrowDown.vue";
 import {ref} from "vue";
+import {CHANGE_EVENT, UPDATE_MODEL_EVENT} from "../../service/constants";
+
 export interface OptionItemType {
   label: string;
   value?: any;
@@ -25,7 +27,17 @@ export interface OptionItemType {
 export default {
   name: "PSelect",
   components: {ArrowDown},
-  props: {},
+  props: {
+    placeholder: {
+      type: String,
+    },
+  },
+  emits: [
+    UPDATE_MODEL_EVENT,
+    CHANGE_EVENT,
+    'focus',
+    'blur',
+  ],
   setup(props) {
     const selectValue = ref(props.modelValue)
     return {

admin-fe/src/service/constants.ts

@@ -0,0 +1,3 @@
+export const UPDATE_MODEL_EVENT = 'update:modelValue'
+export const CHANGE_EVENT = 'change'
+export const INPUT_EVENT = 'input'