diff --git a/upload-1.vue b/upload-1.vue
index 84f6dc2..a631ae5 100644
--- a/upload-1.vue
+++ b/upload-1.vue
@@ -456,6 +456,9 @@ export default {
 
         // 检测选择的文件是否合适
         checkFile(file) {
+            if (!file) {
+				return false;
+			}
             let that = this,
                 {
                     lang,
diff --git a/upload-2.vue b/upload-2.vue
index cac6d8f..d26b0d0 100644
--- a/upload-2.vue
+++ b/upload-2.vue
@@ -455,6 +455,9 @@ export default {
 
 		// 检测选择的文件是否合适
 		checkFile(file) {
+			if (!file) {
+				return false;
+			}
 			let that = this,
 				{
 					lang,
diff --git a/upload-3.vue b/upload-3.vue
index 2f20c30..8b3ae66 100644
--- a/upload-3.vue
+++ b/upload-3.vue
@@ -485,6 +485,9 @@ export default {
 
 		// 检测选择的文件是否合适
 		checkFile(file) {
+			if (!file) {
+				return false;
+			}
 			let that = this,
 				{
 					lang,