零件切割问题

[{"title":"（ 12 个子文件 24KB ） 零件切割问题","children":[{"title":"backtrack.opt <span style='color:#111;'> 47.50KB </span>","children":null,"spread":false},{"title":"25.TXT <span style='color:#111;'> 159B </span>","children":null,"spread":false},{"title":"backtrack.ncb <span style='color:#111;'> 49.00KB </span>","children":null,"spread":false},{"title":"110.txt <span style='color:#111;'> 831B </span>","children":null,"spread":false},{"title":"backtrack.dsp <span style='color:#111;'> 3.36KB </span>","children":null,"spread":false},{"title":"零件切割问题.doc <span style='color:#111;'> 46.00KB </span>","children":null,"spread":false},{"title":"backtrack.cpp <span style='color:#111;'> 4.01KB </span>","children":null,"spread":false},{"title":"16.txt <span style='color:#111;'> 89B </span>","children":null,"spread":false},{"title":"backtrack.plg <span style='color:#111;'> 761B </span>","children":null,"spread":false},{"title":"backtrack.dsw <span style='color:#111;'> 526B </span>","children":null,"spread":false},{"title":"50.TXT <span style='color:#111;'> 307B </span>","children":null,"spread":false},{"title":"84.txt <span style='color:#111;'> 654B </span>","children":null,"spread":false}],"spread":true}]