public class Test02 { public static void main(String[] args) { // TODO Auto-generated method stub String er = "\\d{1,4}(\\.\\d{2})?"; System.out.println("9999.99".matches(er)); System.out.println("18".matches(er)); System.out.println("673.02".matches(er)); System.out.println("0.99".matches(er)); System.out.println("*********************"); System.out.println("9999.999".matches(er)); System.out.println("10000".matches(er)); System.out.println("456.".matches(er)); System.out.println(".99".matches(er)); }
写一个正则表达式,匹配10000以内的数字,可能带两位小数,也可能不带
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转载自blog.csdn.net/weixin_39788493/article/details/80735075
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