C# 倒计时（可实现输入XX分XX秒的倒计时）

[{"title":"（ 32 个子文件 50KB ） C# 倒计时（可实现输入XX分XX秒的倒计时）","children":[{"title":"CountDown","children":[{"title":"WindowsFormsApplication1.sln <span style='color:#111;'> 932B </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1.suo <span style='color:#111;'> 20.50KB </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1","children":[{"title":"Form3.Designer.cs <span style='color:#111;'> 2.11KB </span>","children":null,"spread":false},{"title":"Program.cs <span style='color:#111;'> 505B </span>","children":null,"spread":false},{"title":"Form2.Designer.cs <span style='color:#111;'> 1.16KB </span>","children":null,"spread":false},{"title":"Form3.cs <span style='color:#111;'> 606B </span>","children":null,"spread":false},{"title":"Form2.resx <span style='color:#111;'> 5.68KB </span>","children":null,"spread":false},{"title":"obj","children":[{"title":"Debug","children":[{"title":"CountDown.csproj.FileListAbsolute.txt <span style='color:#111;'> 919B </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1.Form3.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1.Properties.Resources.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1.csproj.GenerateResource.Cache <span style='color:#111;'> 981B </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1.Form1.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1.csproj.FileListAbsolute.txt <span style='color:#111;'> 1.42KB </span>","children":null,"spread":false},{"title":"TempPE","children":null,"spread":false},{"title":"WindowsFormsApplication1.exe <span style='color:#111;'> 11.50KB </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1.Form_CountDown.resources <span style='color:#111;'> 180B </span>","children":null,"spread":false},{"title":"Refactor","children":null,"spread":false},{"title":"CountDown.csproj.GenerateResource.Cache <span style='color:#111;'> 914B </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1.pdb <span style='color:#111;'> 27.50KB </span>","children":null,"spread":false}],"spread":false}],"spread":true},{"title":"bin","children":[{"title":"Debug","children":[{"title":"WindowsFormsApplication1.vshost.exe.manifest <span style='color:#111;'> 490B </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1.vshost.exe <span style='color:#111;'> 13.99KB </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1.exe <span style='color:#111;'> 11.50KB </span>","children":null,"spread":false},{"title":"WindowsFormsApplication1.pdb <span style='color:#111;'> 27.50KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"CountDown.csproj <span style='color:#111;'> 4.01KB </span>","children":null,"spread":false},{"title":"Form2.cs <span style='color:#111;'> 374B </span>","children":null,"spread":false},{"title":"Form_CountDown.cs <span style='color:#111;'> 5.88KB </span>","children":null,"spread":false},{"title":"Form_CountDown.resx <span style='color:#111;'> 5.87KB </span>","children":null,"spread":false},{"title":"Form3.resx <span style='color:#111;'> 5.68KB </span>","children":null,"spread":false},{"title":"Properties","children":[{"title":"AssemblyInfo.cs <span style='color:#111;'> 1.35KB </span>","children":null,"spread":false},{"title":"Settings.Designer.cs <span style='color:#111;'> 1.08KB </span>","children":null,"spread":false},{"title":"Resources.resx <span style='color:#111;'> 5.48KB </span>","children":null,"spread":false},{"title":"Settings.settings <span style='color:#111;'> 249B </span>","children":null,"spread":false},{"title":"Resources.Designer.cs <span style='color:#111;'> 2.83KB </span>","children":null,"spread":false}],"spread":false},{"title":"Form_CountDown.Designer.cs <span style='color:#111;'> 5.80KB </span>","children":null,"spread":false}],"spread":false}],"spread":true}],"spread":true}]