perf(radio): 新增 radio 组件 change 事件

docs/docs/zh-CN/components/radio.md

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+::: demo
+
+<template>
+  <lay-form>
+    <lay-radio v-model="selected1" name="action" label="1">写作</lay-radio>
+    <lay-radio v-model="selected1" name="action" label="2">画画</lay-radio>
+    <lay-radio v-model="selected1" name="action" label="3">运动</lay-radio>
+  </lay-form>
+</template>
+
+<script>
+import { ref } from 'vue'
+
+export default {
+  setup() {
+
+    const selected1 = ref("1");
+
+    return {
+        selected
+    }
+  }
+}
+</script>
+
+:::
+
+::: demo
+
+<template>
+  <lay-form>
+    <lay-radio v-model="selected2" name="action" label="1">写作</lay-radio>
+    <lay-radio v-model="selected2" name="action" label="2">画画</lay-radio>
+    <lay-radio v-model="selected2" name="action" label="3">运动</lay-radio>
+    <lay-radio v-model="selected2" name="action" label="4" :disabled="disabled">禁用</lay-radio>
+  </lay-form>
+</template>
+
+<script>
+import { ref } from 'vue'
+
+export default {
+  setup() {
+
+    const disabled = ref(true);
+    const selected2 = ref("1");
+
+    return {
+        disabled,
+        selected2
+    }
+  }
+}
+</script>
+
+:::
+
+::: demo
+
+<template>
+  <lay-form>
+    <lay-radio v-model="selected3" name="action" label="1" @change="change">写作</lay-radio>
+    <lay-radio v-model="selected3" name="action" label="2" @change="change">画画</lay-radio>
+    <lay-radio v-model="selected3" name="action" label="3" @change="change">运动</lay-radio>
+  </lay-form>
+</template>
+
+<script>
+import { ref } from 'vue'
+
+export default {
+  setup() {
+
+    const selected3 = ref("1");
+    const change = function( current ) {
+        console.log("当前值:" + current)
+    }
+    return {
+        selected3,
+        change
+    }
+  }
+}
+</script>
+
+:::