使用C#写的抽奖机(能够随机抽取一,二,三等奖)

[{"title":"（ 123 个子文件 5.64MB ） 使用C#写的抽奖机(能够随机抽取一,二,三等奖)","children":[{"title":"LukyForm.Designer.cs~RF11e6cb5.TMP <span style='color:#111;'> 13.34KB </span>","children":null,"spread":false},{"title":"ValidatePwd.resx <span style='color:#111;'> 5.68KB </span>","children":null,"spread":false},{"title":"NumberManage.cs~RF85193.TMP <span style='color:#111;'> 4.95KB </span>","children":null,"spread":false},{"title":"MainForm.cs~RF122531e.TMP <span style='color:#111;'> 1.42KB </span>","children":null,"spread":false},{"title":"大抽奖.csproj <span style='color:#111;'> 6.49KB </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]