数字输入控件，可指定整数位和小数位的长度，可指定是否允许负值。 需要SuiEdit控件支持，如果没有，可修改源码从TCustomEdit继承，并去掉其没有的属性及相关方法即可。-digital input control, to designate places and rounded the length of decimal places, to designate whether to allow negative. SuiEdit controls need support, and if not, can modify the source codes from TCustomEdit inheritance, it is not removed and the properties and related methods can be.