如果用正则表达式表示0001-2500范围内的数字
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for example
- Java code
String regex = "[0]{3}[1-9]|[0]{2}[1-9][0-9]|[0][1-9][0-9]{2}|1[0-9]{3}|2[0-4][0-9]{2}|2500";for (int i=1; i<3000; i++) { //check String s = String.format("%04d", i); if (! s.matches(regex)) { System.out.println(i); break; }}
------解决方案--------------------
- JScript code
<script>var str = "30001";if(/^([0-1][0-9][0-9][0-9])|(2[0-4][0-9][0-9])|(2500)$/.test(str)){document.write('yes');}else{document.write('no');}</script>