1 //用playground运行即可
 2 import UIKit
 3 
 4 var str = "Hello,playground"
 5 
 6 let lTestPointsOne : [(Double,Double)]  = [(0,0)]
 7 let lTestPoints : [(Double,1)">0),(1),1)">1,1)">1 8 let lPoints : [(Double,1)">2),1)">2,1)">3,1)"> 9 
10 func judgeIf(point:(Double,Double),isIn pointArr:[(Double,Double)])->Bool{
11     if 0 == pointArr.count {
12         return false
13     }
14     let lPath = UIBezierPath.init()
15     let l1stPoint = pointArr.first
16     lPath.move(to: CGPoint.init(x: l1stPoint!.))
17     
18     for i in 1..<pointArr.count {
19         let lP = pointArr[i]
20         lPath.addLine(to: CGPoint.init(x: lP.21 22     
23     lPath.close()
24     return lPath.contains(CGPoint.init(x: point.25 }
26 
27 print(lPoints)
28 judgeIf(point: (),isIn: lPoints)
29 judgeIf(point: (30 judgeIf(point: (31 judgeIf(point: (0.5,1)">232 judgeIf(point: (33 judgeIf(point: (34 judgeIf(point: (0.535 judgeIf(point: (1.536 judgeIf(point: (37 judgeIf(point: (3.3,1)">8.138 
39 judgeIf(point: (40 judgeIf(point: (41 judgeIf(point: (42 judgeIf(point: (0.743 judgeIf(point: (0.144 judgeIf(point: (845 judgeIf(point: (46 
47 judgeIf(point: (48 judgeIf(point: ( 原文链接：/iOS/883614.html