The title opened the web page and gave the source code: <?php highlight_file(__FILE__); class C...

The title is ezzzz_pickle, which must have something to do with the pickle module. This is the source code that broke out after solving the problem: fr...

The topic is also the topic of Flask and gives the source code: from Flask import Flask,request...

The title gives the source code: import OS import re from flask import Flask,...

The topic is a topic seen on BUUCTF. The source code of the topic is as follows (stripped down after obtaining permission): from flask impor...