Input 4 points coordinates, the first point and second points connect into one line, third points and fourth points connect into another line, and calculate the engineering source code of the angle of two straight lines.

Filename	Size	Update
4点求直线夹角\WindowsFormsApplication1\App.config	187	2017-12-18
4点求直线夹角\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe	11264	2017-12-19
4点求直线夹角\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe.config	187	2017-12-18
4点求直线夹角\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.pdb	32256	2017-12-19
4点求直线夹角\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe	23168	2017-12-18
4点求直线夹角\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe.config	187	2017-12-18
4点求直线夹角\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe.manifest	490	2017-03-19
4点求直线夹角\WindowsFormsApplication1\Form1.cs	1919	2017-12-19
4点求直线夹角\WindowsFormsApplication1\Form1.Designer.cs	8981	2017-12-18
4点求直线夹角\WindowsFormsApplication1\Form1.resx	5817	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj\Debug\DesignTimeResolveAssemblyReferences.cache	865	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache	6995	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs	0	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs	0	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs	0	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.csproj.FileListAbsolute.txt	1865	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.csproj.GenerateResource.Cache	977	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.csprojResolveAssemblyReference.cache	2211	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.exe	11264	2017-12-19
4点求直线夹角\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.Form1.resources	180	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.pdb	32256	2017-12-19
4点求直线夹角\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.Properties.Resources.resources	180	2017-12-18
4点求直线夹角\WindowsFormsApplication1\Program.cs	536	2017-12-18
4点求直线夹角\WindowsFormsApplication1\Properties\AssemblyInfo.cs	1372	2017-12-18
4点求直线夹角\WindowsFormsApplication1\Properties\Resources.Designer.cs	2900	2017-12-18
4点求直线夹角\WindowsFormsApplication1\Properties\Resources.resx	5612	2017-12-18
4点求直线夹角\WindowsFormsApplication1\Properties\Settings.Designer.cs	1111	2017-12-18
4点求直线夹角\WindowsFormsApplication1\Properties\Settings.settings	249	2017-12-18
4点求直线夹角\WindowsFormsApplication1\WindowsFormsApplication1.csproj	3828	2017-12-18
4点求直线夹角\WindowsFormsApplication1.sln	1041	2017-12-18
4点求直线夹角\WindowsFormsApplication1.v12.suo	37376	2017-12-19
4点求直线夹角\WindowsFormsApplication1\obj\Debug\TempPE	0	2017-12-18
4点求直线夹角\WindowsFormsApplication1\bin\Debug	0	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj\Debug	0	2017-12-19
4点求直线夹角\WindowsFormsApplication1\bin	0	2017-12-18
4点求直线夹角\WindowsFormsApplication1\obj	0	2017-12-18
4点求直线夹角\WindowsFormsApplication1\Properties	0	2017-12-18
4点求直线夹角\WindowsFormsApplication1	0	2017-12-19
4点求直线夹角	0	2017-12-18

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