diff --git a/docs/component/radio.md b/docs/component/radio.md
index a38eab636c2cc0ec8ab9e183363ac404aba38e37..9dad464facf6e7aade8ea87d3fc17b5ea3cf139d 100644
--- a/docs/component/radio.md
+++ b/docs/component/radio.md
@@ -56,11 +56,12 @@ export default {
             items: [{
                     value: 'USA',
                     name: '美国'
+                   checked: 'true'
                 },
                 {
                     value: 'CHN',
                     name: '中国',
-                    checked: 'true'
+                 
                 },
                 {
                     value: 'BRA',