1. 在項(xiàng)目中創(chuàng)建一個(gè)國(guó)際化插件的文件i18n.ts

<!-- plugins/i18n.ts -->
export const i18nPlugin = {install(app: any, option: any) {app.config.globalProperties.$t = (key: string) => {return key.split(".").reduce((o, k) => {if (o) return o[k];}, option[localStorage.getItem("language") || "zhCN"]);} }
}

2. 創(chuàng)建語(yǔ)言模塊json

<!-- assets/i18n/zh-CN.json -->
{"project": {"projectName": "項(xiàng)目名稱(chēng)"}
}
<!-- assets/i18n/en-US.json -->
{"project": {"projectName": "project name"}
}

3. 注冊(cè)插件

import zhCN from "./assets/i18n/zh-CN.json";
import enUS from "./assets/i18n/en-US.json";
import { i18nPlugin } from "./plugins/i18n";const app = createApp(App);
app.use(i18nPlugin, {zhCN,enUS,
});

4. 語(yǔ)言切換組件

<!-- components/ChangeLanguage.vue -->
<template><a-select:value="language"@change="changeLanguage"><a-select-option value="zhCN">中文</a-select-option><a-select-option value="enUS">English</a-select-option></a-select>
</template><script lang="ts"setup>
import {ref} from "vue";// 將當(dāng)前選擇的語(yǔ)言存到localStorage中
const language = ref(localStorage.getItem("language") || "zhCN");
const changeLanguage = (value: string) => {language.value = value;localStorage.setItem("language", value);window.location.reload();
};
</script>

5. 使用插件(ts中使用全局需注意點(diǎn))

<template><ChangeLanguage />
</template>
<!-- component.vue -->
<script lang="ts" setup>
import { getCurrentInstance } from "vue";
import SelectLanguage from "@/components/SelectLanguage.vue";// 通過(guò)getCurrentInstance()來(lái)獲取當(dāng)前組件實(shí)例
const instance = getCurrentInstance();
// 從當(dāng)前組件實(shí)例中獲取全局的 $t 函數(shù)
const $t = instance?.appContext.app.config.globalProperties.$t;// 調(diào)用全局的 $t 函數(shù)進(jìn)行文本翻譯
const translatedText = $t('project.projectName');
console.log(translatedText);
</script>