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)