禁止重复运行-可还原窗口,让程序标识成为唯一性，如果该程序在电脑上运行过一次，就不会重复运行，并且再次运行可自动弹出已运行的程序界面-Prohibit repeated operation- can restore the window, let the program identification become the only, if the program on the computer to run once, will not repeat the operation, and the operation can be automatically pop-up has run the program interface again