diff --git a/package.json b/package.json
index d110453..636f019 100644
--- a/package.json
+++ b/package.json
@@ -33,4 +33,4 @@
     "nunjucks": "^3.2.0",
     "optimist": "^0.6.1"
   }
-}
\ No newline at end of file
+}
diff --git a/source/_posts/前端杂烩/base64文件上传.md b/source/_posts/前端杂烩/base64文件上传.md
index 792e4f8..cba1e6f 100644
--- a/source/_posts/前端杂烩/base64文件上传.md
+++ b/source/_posts/前端杂烩/base64文件上传.md
@@ -26,11 +26,11 @@ fileInput.addEventListener('change', function() {
   var file = fileInput.files[0];
   var reader = new FileReader();
   var fileBase64 = null;
-  reader.onload = function() {
+  reader.onload = function(e) {
     fileBase64 = e.target.result; //base64编码
   }
   reader.readAsDataURL(file);
-}
+})
 ```
 这里获取到的`fileBase64`就是文件的base64编码
 如果这个文件是一个图片 , 我们当然可以借助它来实现所选图片的预览