diff --git a/docs/component/radio.md b/docs/component/radio.md
index a38eab636c2cc0ec8ab9e183363ac404aba38e37..37875e43ec5dc4a41f59736515b52f30e44dd790 100644
--- a/docs/component/radio.md
+++ b/docs/component/radio.md
@@ -55,12 +55,14 @@ export default {
         return {
             items: [{
                     value: 'USA',
-                    name: '美国'
+                    name: '美国',
+                  checked: 'true'
+
                 },
                 {
                     value: 'CHN',
-                    name: '中国',
-                    checked: 'true'
+                    name: '中国'
+                  
                 },
                 {
                     value: 'BRA',