ListView快速显示100万条数据用时1秒

[{"title":"（ 10 个子文件 206KB ） ListView快速显示100万条数据用时1秒","children":[{"title":"Unit1.dfm <span style='color:#111;'> 1.55KB </span>","children":null,"spread":false},{"title":"Project1.exe <span style='color:#111;'> 482.00KB </span>","children":null,"spread":false},{"title":"Unit1.pas <span style='color:#111;'> 1.91KB </span>","children":null,"spread":false},{"title":"Unit1.dcu <span style='color:#111;'> 5.82KB </span>","children":null,"spread":false},{"title":"Project1.res <span style='color:#111;'> 876B </span>","children":null,"spread":false},{"title":"Unit1.~dfm <span style='color:#111;'> 1.49KB </span>","children":null,"spread":false},{"title":"Unit1.~pas <span style='color:#111;'> 1.91KB </span>","children":null,"spread":false},{"title":"Project1.dof <span style='color:#111;'> 1.97KB </span>","children":null,"spread":false},{"title":"Project1.dpr <span style='color:#111;'> 188B </span>","children":null,"spread":false},{"title":"Project1.cfg <span style='color:#111;'> 434B </span>","children":null,"spread":false}],"spread":true}]