根据给定的C类IP地址和子网掩码中1的位数，编程求出相应的广播地址和子网范围，-according to the Class C IP address and subnet mask had one of the median Programming obtained corresponding broadcast address and subnet,

功能：1、从资源或者外部导入图片，抠除mask色，实现按钮异形 2、实现按钮的透明渐变效果 3、3D按钮文字效果 4、按钮Hover、点击声音效果 5、设置按钮光标. 作者：C瓜哥 blog: www.cguage.com-Function: 1, import images from a resource or external, pull the mask addition to color, to achieve the button shaped 2

qt圆形头像的两种实现方法 1、使用QPainter设置掩码显示 2、qtdesigner界面设置圆形控件 3、透明背景叠加显示-qt round Avatar two methods 1, the mask display settings using QPainter 2, qtdesigner interface settings circular controls 3, transparent background overlay display