.

app/controllers/jupyters_controller.rb

@@ -53,7 +53,7 @@ class JupytersController < ApplicationController
         src_url = URI("https://47519.jupyter.educoder.net/nbconvert/notebook/data/workspace/myshixun_tpm3575/01.ipynb?download=true")
         response = Net::HTTP.get_response(src_url)
 
-        if response.code != 200
+        if response.code.to_i != 200
             raise("获取文件内容失败：#{response.code}")
         end