摘要:
public static void main(String args[]) { Pattern pattern = Pattern.compile("^[-+]?(([0-9]+)([.]([0-9]+))?|([.]([0-9]+))?)$"); Matcher isNum = pattern.matcher("1"); if (!isNum.matches()) { S... 阅读全文
posted @ 2018-10-10 15:05
小宁同学柠檬茶
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