WPF项目：只能输入数值型的控件，有2个按钮可以改变值的大小，貌似在winfrom有这个控件但WPF默认没有，用法和一般默认控件一样简单-WPF project: You can only enter numeric controls, there are two buttons you can change the size of the value, seemingly in winfrom control but the default WPF usage and general defa