这个例子演示图钉按纽的实现(就像Developer Studio中资源的属性表中左上角的按纽)-this example demonstrates the realization radius button (like Developer Studio is a resource sexual upper left corner of the table button)
计算器源代码,可以实现简单的计算操作,拥有普通计算器的计算功能。-Calculator source code, you can realize a simple calculation of the operation, with the computing power of ordinary calculator.