vue-i18n使用$t导致的Typescript报错问题及解决

<template>
	<div>{{ t('xxx') }}</div>
</template>

<script setup lang="ts">
import { useI18n } from "vue-i18n";
const { t } = useI18n();
</script>

<template>
	<div>{{ $t('xxx') }}</div>
</template>

<script setup lang="ts">
// getCurrentInstance 需要在组件中使用。
import { getCurrentInstance } from "vue";
const {
	appContext: {
		config: { globalProperties },
	},
} = getCurrentInstance();
console.log(globalProperties.$t);
</script>

// node_modules\@vue\runtime-core\dist\runtime-core.d.ts

export declare const getCurrentInstance: () => ComponentInternalInstance | null;

export interface ComponentInternalInstance {
    // ...
    appContext: AppContext;
}

export interface AppContext {
    // ...
    config: AppConfig;
}

export interface AppConfig {
	// ...
	globalProperties: ComponentCustomProperties & Record<string, any>;
}

// 默认为空
export interface ComponentCustomProperties {
}

/* eslint-disable */
import Vue from "vue";
declare module "@vue/runtime-core" {
	export interface ComponentCustomProperties {
		$t: (key: string, ...args: any[]) => string;
	}
}