[{"title":"( 2 个子文件 1KB ) pareto排序程序","children":[{"title":"pareto","children":[{"title":"example.txt <span style='color:#111;'> 241B </span>","children":null,"spread":false},{"title":"pareto.txt <span style='color:#111;'> 1.41KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]