import UIKitextension UIView {// x
    var x : CGFloat {get {return frame.origin.x}set(newVal) {var tmpFrame : CGRect = frametmpFrame.origin.x     = newValframe                 = tmpFrame}}// y
    var y : CGFloat {get {return frame.origin.y}set(newVal) {var tmpFrame : CGRect = frametmpFrame.origin.y     = newValframe                 = tmpFrame}}// height
    var height : CGFloat {get {return frame.size.height}set(newVal) {var tmpFrame : CGRect = frametmpFrame.size.height  = newValframe                 = tmpFrame}}// width
    var width : CGFloat {get {return frame.size.width}set(newVal) {var tmpFrame : CGRect = frametmpFrame.size.width   = newValframe                 = tmpFrame}}// left
    var left : CGFloat {get {return x}set(newVal) {x = newVal}}// right
    var right : CGFloat {get {return x + width}set(newVal) {x = newVal - width}}// top
    var top : CGFloat {get {return y}set(newVal) {y = newVal}}// bottom
    var bottom : CGFloat {get {return y + height}set(newVal) {y = newVal - height}}var centerX : CGFloat {get {return center.x}set(newVal) {center = CGPoint(x: newVal, y: center.y)}}var centerY : CGFloat {get {return center.y}set(newVal) {center = CGPoint(x: center.x, y: newVal)}}var middleX : CGFloat {get {return width / 2}}var middleY : CGFloat {get {return height / 2}}var middlePoint : CGPoint {get {return CGPoint(x: middleX, y: middleY)}}
}

import UIKitextension UIView {//设置随机背景色
    func backgroundColorRandom(){self.backgroundColor = UIColor(red: CGFloat(CGFloat(random())/CGFloat(RAND_MAX)), green: CGFloat(CGFloat(random())/CGFloat(RAND_MAX)), blue: CGFloat(CGFloat(random())/CGFloat(RAND_MAX)), alpha: 1)}var x : CGFloat!{get{return self.frame.origin.x}set(newX){var rect : CGRect! = self.framerect.origin.x = newXself.frame = rect}}var y : CGFloat!{get{return self.frame.origin.y}set(newY){var rect : CGRect! = self.framerect.origin.y = newYself.frame = rect}}var width : CGFloat!{get{return self.frame.size.width}set(newW){var rect : CGRect! = self.framerect.size.width = newWself.frame = rect}}var height : CGFloat!{get{return self.frame.size.height}set(newH){var rect : CGRect! = self.framerect.size.height = newHself.frame = rect}}}