拨号按键识别GUI界面程序，原理采用DTMF，本程序随意按下六位数字，当按下第七位的时候屏幕清空，点击解析，结果将显示在文本框中，并有相应的声音。-GUI interface dial buttons identification procedures, principles using DTMF, this program free to press the six figures, when you press the seventh, when the screen is empty, click the analytical results will be displayed in the text box, and a corresponding sound.