The 4 case is about goto cycle and dowhile cycle respectively. There are instructions in the program

Filename	Size	Update
7	0	2018-03-29
7\1	0	2018-03-29
7\1\1	0	2018-03-29
7\1\1\1.csproj	2544	2018-03-29
7\1\1\App.config	187	2018-03-29
7\1\1\Program.cs	4973	2018-03-29
7\1\1\Properties	0	2018-03-29
7\1\1\Properties\AssemblyInfo.cs	1340	2018-03-29
7\1\1\bin	0	2018-03-29
7\1\1\bin\Debug	0	2018-03-29
7\1\1\bin\Debug\1.exe	5120	2018-03-29
7\1\1\bin\Debug\1.exe.config	187	2018-03-29
7\1\1\bin\Debug\1.pdb	13824	2018-03-29
7\1\1\bin\Debug\1.vshost.exe	22984	2018-03-29
7\1\1\bin\Debug\1.vshost.exe.config	187	2018-03-29
7\1\1\bin\Release	0	2018-04-22
7\1\1\obj	0	2018-03-29
7\1\1\obj\Debug	0	2018-03-29
7\1\1\obj\Debug\1.csproj.FileListAbsolute.txt	152	2018-03-29
7\1\1\obj\Debug\1.exe	5120	2018-03-29
7\1\1\obj\Debug\1.pdb	13824	2018-03-29
7\1\1\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache	6475	2018-03-29
7\1\1\obj\Debug\TempPE	0	2018-04-22
7\1\1\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs	0	2018-03-29
7\1\1\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs	0	2018-03-29
7\1\1\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs	0	2018-03-29
7\1\1.sln	988	2018-03-29
7\1\1.v11.suo	18944	2018-03-29

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