feat: 字符串模版支持key

src/locale/en.json

@@ -1,5 +1,6 @@
 {
   "weight": "{heavy}KG",
   "weight2": "{0}KG",
+  "introduction": "I am {name},height:{detail.height},weight:{detail.weight}",
   "app.name": "En Title"
 }

src/locale/index.ts

@@ -49,4 +49,26 @@ export function formatString(template: string, ...values: any) {
     return value !== undefined ? value : match
   })
 }
+
+/**
+ * formatStr('我是{name},身高{detail.height},体重{detail.weight}',{name:'张三',detail:{height:178,weight:'75kg'}})
+ * 暂不支持数组
+ * @param template
+ * @param data
+ * @returns
+ */
+export function formatStr(template, data) {
+  const match = /\{(.*?)\}/g.exec(template)
+  if (match) {
+    const variableList = match[0].replace('{', '').replace('}', '').split('.')
+    let result = data
+    for (let i = 0; i < variableList.length; i++) {
+      result = result[variableList[i]] || ''
+    }
+    return formatStr(template.replace(match[0], result), data)
+  } else {
+    return template
+  }
+}
+
 export default i18n

src/locale/zh-Hans.json

@@ -1,5 +1,6 @@
 {
   "app.name": "中文标题",
   "weight": "{heavy}公斤",
+  "introduction": "我是 {name},身高:{detail.height},体重:{detail.weight}",
   "weight2": "{0}公斤"
 }

src/pages/index/i18n.vue

@@ -17,6 +17,9 @@
     <view class="m-4">{{ $t('app.name') }}</view>
     <view class="m-4">{{ $t('weight', { heavy: 100 }) }}</view>
     <view class="m-4">{{ formatString(translate('weight2'), 100) }}</view>
+    <view class="m-4">
+      {{ formatStr(translate('introduction'), user) }}
+    </view>
 
     <view class="text-green-500 mt-12">切换语言</view>
     <view class="uni-list">
@@ -36,10 +39,11 @@
 </template>
 
 <script lang="ts" setup>
-import i18n, { formatString, translate } from '@/locale/index'
+import i18n, { formatStr, formatString, translate } from '@/locale/index'
 import { testI18n } from '@/utils/i18n'
 
 const current = ref(uni.getLocale())
+const user = { name: '张三', detail: { height: 178, weight: '75kg' } }
 const languages = [
   {
     value: 'zh-Hans',