判断一个点在一条直线的左侧还是右侧

[{"title":"（ 36 个子文件 2.24MB ） 判断一个点在一条直线的左侧还是右侧","children":[{"title":"判断点在直线的位置","children":[{"title":"Test","children":[{"title":"ReadMe.txt <span style='color:#111;'> 4.16KB </span>","children":null,"spread":false},{"title":"StdAfx.h <span style='color:#111;'> 1.03KB </span>","children":null,"spread":false},{"title":"Test.opt <span style='color:#111;'> 47.50KB </span>","children":null,"spread":false},{"title":"res","children":[{"title":"Toolbar.bmp <span style='color:#111;'> 1.05KB </span>","children":null,"spread":false},{"title":"TestDoc.ico <span style='color:#111;'> 1.05KB </span>","children":null,"spread":false},{"title":"Test.rc2 <span style='color:#111;'> 396B </span>","children":null,"spread":false},{"title":"Test.ico <span style='color:#111;'> 1.05KB </span>","children":null,"spread":false}],"spread":true},{"title":"Test.rc <span style='color:#111;'> 10.27KB </span>","children":null,"spread":false},{"title":"Test.aps <span style='color:#111;'> 27.77KB </span>","children":null,"spread":false},{"title":"Test.ncb <span style='color:#111;'> 57.00KB </span>","children":null,"spread":false},{"title":"MainFrm.cpp <span style='color:#111;'> 2.45KB </span>","children":null,"spread":false},{"title":"Test.h <span style='color:#111;'> 1.30KB </span>","children":null,"spread":false},{"title":"MainFrm.h <span style='color:#111;'> 1.54KB </span>","children":null,"spread":false},{"title":"Debug","children":[{"title":"vc60.pdb <span style='color:#111;'> 356.00KB </span>","children":null,"spread":false},{"title":"Test.obj <span style='color:#111;'> 22.11KB </span>","children":null,"spread":false},{"title":"MainFrm.obj <span style='color:#111;'> 19.26KB </span>","children":null,"spread":false},{"title":"vc60.idb <span style='color:#111;'> 209.00KB </span>","children":null,"spread":false},{"title":"Test.pdb <span style='color:#111;'> 457.00KB </span>","children":null,"spread":false},{"title":"Test.exe <span style='color:#111;'> 116.05KB </span>","children":null,"spread":false},{"title":"TestDoc.obj <span style='color:#111;'> 14.08KB </span>","children":null,"spread":false},{"title":"StdAfx.obj <span style='color:#111;'> 102.98KB </span>","children":null,"spread":false},{"title":"Test.ilk <span style='color:#111;'> 444.66KB </span>","children":null,"spread":false},{"title":"Test.res <span style='color:#111;'> 7.06KB </span>","children":null,"spread":false},{"title":"Test.pch <span style='color:#111;'> 5.25MB </span>","children":null,"spread":false},{"title":"TestView.obj <span style='color:#111;'> 26.66KB </span>","children":null,"spread":false}],"spread":false},{"title":"Test.cpp <span style='color:#111;'> 4.08KB </span>","children":null,"spread":false},{"title":"Resource.h <span style='color:#111;'> 490B </span>","children":null,"spread":false},{"title":"TestDoc.cpp <span style='color:#111;'> 1.66KB </span>","children":null,"spread":false},{"title":"Test.dsw <span style='color:#111;'> 533B </span>","children":null,"spread":false},{"title":"Test.clw <span style='color:#111;'> 2.14KB </span>","children":null,"spread":false},{"title":"TestView.cpp <span style='color:#111;'> 5.15KB </span>","children":null,"spread":false},{"title":"Test.dsp <span style='color:#111;'> 4.41KB </span>","children":null,"spread":false},{"title":"StdAfx.cpp <span style='color:#111;'> 206B </span>","children":null,"spread":false},{"title":"TestDoc.h <span style='color:#111;'> 1.42KB </span>","children":null,"spread":false},{"title":"Test.plg <span style='color:#111;'> 242B </span>","children":null,"spread":false},{"title":"TestView.h <span style='color:#111;'> 2.07KB </span>","children":null,"spread":false}],"spread":false}],"spread":true}],"spread":true}]