diff --git a/.gitignore b/.gitignore
index f3c5475..354c71a 100755
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ Thumbs.db
 .vscode
 .idea
 /docs/.vuepress/dist/
+package-lock.json
diff --git a/App.vue b/App.vue
index 451c12a..bc6552b 100755
--- a/App.vue
+++ b/App.vue
@@ -23,7 +23,7 @@
         },
         data: function () {
             return {
-                val: ''
+                val: null
             }
         },
         methods: {
diff --git a/src/components/pro/pro.js b/src/components/pro/pro.js
index 1e9e135..b8d0d50 100644
--- a/src/components/pro/pro.js
+++ b/src/components/pro/pro.js
@@ -25,10 +25,9 @@ export default {
     },
     methods: {
         init() {// 初始化
-            this.currentValue = this.value;
             this.themeName = this.theme;
             this.preview = this.isPreview;
-            this.currentValue = this.value;
+            this.currentValue = this.value || '';
             if (this.isPreview) {
                 return;
             }
diff --git a/src/components/simple/simple.js b/src/components/simple/simple.js
index 7ee9af7..0ee40f5 100644
--- a/src/components/simple/simple.js
+++ b/src/components/simple/simple.js
@@ -14,7 +14,7 @@ export default {
     },
     methods: {
         init() {
-            this.currentValue = this.value;
+            this.currentValue = this.value || '';
             this.themeName = this.theme;
             this.preview = this.isPreview;
             if (this.isPreview) {