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用于浮动点的条数
原标题:RegExp for floating point
  • 时间:2012-05-24 14:06:30
  •  标签:
  • java
  • regex

我想要一个接受以下值的正则表达式:

  • 01 (no dot)
  • 01.0 (1 digit after dot)
  • 01.00 (2 digits after dot)

不接受以下规定:

  • 10.(No digits after dot)
  • 10.001 (3 digits after dot)

任何帮助都将不胜感激。

最佳回答

这将像这样: [0-9]* (.[0-9]{1,2})?

指的是点之后的1-2位数。

问题回答

一种可能的共性

d*([.]d{1,2})?

这将匹配零位或更多位数, 然后是一个包含点和一个或两个位数的可选组 。





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