用swift创建第一个控件UILabel

self.view.backgroundColor=UIColor.cyanColor()

let label1 = UILabel(frame: CGRectMake(100, 100, 100, 50))

label1.text="label1"

label1.textAlignment=NSTextAlignment.Center

label1.numberOfLines=0

//var color=UIColor(red: 245.0, green: 250.0, blue: 248.0, alpha: 1)

label1.backgroundColor=UIColor.lightGrayColor()

var lfont = UIFont(name: "ga", size: 14)

label1.font = lfont

//var textColor=UIColor(red: 100, green: 100, blue: 100, alpha: 1)

label1.textColor=UIColor.blackColor()

self.view.addSubview(label1)