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有一个XML文本编辑场这已经到了一个小数点,并在数字前的征兆,并且我知道是模式:如何使用Decimal和Signed制作文本字段?
number : which takes numbers only,no decimal point or sign.
numberDecimal : which takes numbers and decimal point,no sign.
numberSigned : which takes numbers and a sign,no decimal point.
,所以我想最后两种模式一起莫名其妙