docs(Circle): use composition api

src/circle/README.md

@@ -24,17 +24,18 @@ app.use(Circle);
 ```
 
 ```js
+import { ref, computed } from 'vue';
+
 export default {
-  data() {
+  setup() {
+    const currentRate = ref(0);
+    const text = computed(() => currentRate.value.toFixed(0) + '%');
+
     return {
-      currentRate: 0,
+      text,
+      currentRate,
     };
   },
-  computed: {
-    text() {
-      return this.currentRate.toFixed(0) + '%';
-    },
-  },
 };
 ```
 
@@ -72,14 +73,19 @@ export default {
 ```
 
 ```js
+import { ref } from 'vue';
+
 export default {
-  data() {
-    return {
-      currentRate: 0,
-      gradientColor: {
+  setup() {
+    const currentRate = ref(0);
+    const gradientColor = {
       '0%': '#3fecff',
       '100%': '#6149f6',
-      },
+    };
+
+    return {
+      currentRate,
+      gradientColor,
     };
   },
 };

src/circle/README.zh-CN.md

@@ -30,17 +30,18 @@ app.use(Circle);
 ```
 
 ```js
+import { ref, computed } from 'vue';
+
 export default {
-  data() {
+  setup() {
+    const currentRate = ref(0);
+    const text = computed(() => currentRate.value.toFixed(0) + '%');
+
     return {
-      currentRate: 0,
+      text,
+      currentRate,
     };
   },
-  computed: {
-    text() {
-      return this.currentRate.toFixed(0) + '%';
-    },
-  },
 };
 ```
 
@@ -84,14 +85,19 @@ export default {
 ```
 
 ```js
+import { ref } from 'vue';
+
 export default {
-  data() {
-    return {
-      currentRate: 0,
-      gradientColor: {
+  setup() {
+    const currentRate = ref(0);
+    const gradientColor = {
       '0%': '#3fecff',
       '100%': '#6149f6',
-      },
+    };
+
+    return {
+      currentRate,
+      gradientColor,
     };
   },
 };

src/circle/demo/index.vue

@@ -41,7 +41,7 @@
       :speed="100"
       :clockwise="false"
       :text="t('counterClockwise')"
-      style="margin-top: 15px;"
+      style="margin-top: 15px"
     />
 
     <van-circle
@@ -52,11 +52,11 @@
       size="120px"
       :clockwise="false"
       :text="t('customSize')"
-      style="margin-top: 15px;"
+      style="margin-top: 15px"
     />
   </demo-block>
 
-  <div style="margin-top: 15px;">
+  <div style="margin-top: 15px">
     <van-button :text="t('add')" type="primary" size="small" @click="add" />
     <van-button
       :text="t('decrease')"
@@ -67,11 +67,13 @@
   </div>
 </template>
 
-<script>
-const format = (rate) => Math.min(Math.max(rate, 0), 100);
+<script lang="ts">
+import { reactive, toRefs } from 'vue';
+import { useTranslate } from '@demo/use-translate';
 
-export default {
-  i18n: {
+const format = (rate: number) => Math.min(Math.max(rate, 0), 100);
+
+const i18n = {
   'zh-CN': {
     gradient: '渐变色',
     customSize: '大小定制',
@@ -88,30 +90,39 @@ export default {
     customWidth: 'Custom Width',
     counterClockwise: 'Counter Clockwise',
   },
-  },
+};
 
-  data() {
-    return {
+export default {
+  setup() {
+    const t = useTranslate(i18n);
+    const state = reactive({
       rate: 70,
       currentRate1: 70,
       currentRate2: 70,
       currentRate3: 70,
       currentRate4: 70,
-      gradientColor: {
+    });
+
+    const gradientColor = {
       '0%': '#3fecff',
       '100%': '#6149f6',
-      },
     };
-  },
 
-  methods: {
-    add() {
-      this.rate = format(this.rate + 20);
-    },
+    const add = () => {
+      state.rate = format(state.rate + 20);
+    };
 
-    reduce() {
-      this.rate = format(this.rate - 20);
-    },
+    const reduce = () => {
+      state.rate = format(state.rate - 20);
+    };
+
+    return {
+      ...toRefs(state),
+      t,
+      add,
+      reduce,
+      gradientColor,
+    };
   },
 };
 </script>