go语言happens-before原则及应用

)//(7)\rlock.U^lockQ89\r}\rfuM{\r3°2\rgo\r)\rúûª[ p\r1.[@‘a’Un/ockhappei^s-before.‘aLockm`”m’ü\r—^½?noýpm÷(4)happens-beforeþ`m÷ÿhappes-before(1),\r 0@P`p?\n(6)happen-before(7)happen-before(2)happen-before.(3),\r(2)happen-before(3)happen-before(6)-before(7),?? “0\r012`p??\rEvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\rvara,bi^tvarc=^v\ake(chai^int>1)\rfuMf(){\r4-c\ra-1//(2)\rb=2\rc<-1\r)\rfuncg(){\r<-c\rprint(b)//(6)\rprii^t(a)//(7)\rc\r)\rfemetest(){\rwg\n=sgC.W(MKO(P\rwg.Add(3)\rgoftmcfX\rdefer!.Done\rfo\rK)\rgo"c(){\rdeferwg.DoMQEvaluationWarning:ThedocumentwascreatedwithSpire.PDFfor.NET.\rgo\rK)\rgof<mc0{\rdeferwg.Doe()\rc<-1\rK)\rwg.Wait\rclose(c)\r}\r#$%&?'()*+,-.$/0ha1-s-before23%456789\r:;)<=$/023%>&?@ABCDEFGHB)*0IJ%KL\r)*M?NOE0PQR