function alert(x) { WScript.Echo(x + ""); } function test(n) { n = new String(n); var reg = /(\d).*\1/; var res = []; while (reg.test(n)) { var $1 = RegExp.$1; var t = n.match(new RegExp($1, "g")).join(""); res.push(t + "---------" + t.length + "位"); n = n.split($1).join(""); } if (res.length > 0) { alert("有重数\n" + res.join("\n")); } else { alert("无重数"); } } test("19889");
请问大哥。RegExp.$1是什么意思啊
L@_@K<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title> new document </title> <meta name="generator" content="editplus" /> <meta name="author" content="" /> <meta name="keywords" content="" /> <meta name="description" content="" /> </head> <body> <script type="text/javascript"> <!-- var str = "2233"; var arr = str.split(""); var result = { isRepeated: false, repeatedNumList: {} }; var r; for (var i=0; i<arr.length; i++) { if (str.indexOf(arr[i]) < i) continue; re = new RegExp(arr[i],"g"); r = str.match(re); if (r.length > 1) { result.isRepeated = true; result.repeatedNumList[arr[i]] = r.length; } }var s = "无重数"; if (result.isRepeated) { s = "有重数"; for(var p in result.repeatedNumList) s += "\n" + p + ": " + result.repeatedNumList[p] + "次"; }alert(s); //--> </script> </body> </html>
WScript.Echo(x + "");
}
function test(n) {
n = new String(n);
var reg = /(\d).*\1/;
var res = [];
while (reg.test(n)) {
var $1 = RegExp.$1;
var t = n.match(new RegExp($1, "g")).join("");
res.push(t + "---------" + t.length + "位");
n = n.split($1).join("");
}
if (res.length > 0) {
alert("有重数\n" + res.join("\n"));
} else {
alert("无重数");
}
}
test("19889");
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<meta name="generator" content="editplus" />
<meta name="author" content="" />
<meta name="keywords" content="" />
<meta name="description" content="" />
</head> <body>
<script type="text/javascript">
<!--
var str = "2233";
var arr = str.split("");
var result = {
isRepeated: false,
repeatedNumList: {}
};
var r;
for (var i=0; i<arr.length; i++)
{
if (str.indexOf(arr[i]) < i) continue; re = new RegExp(arr[i],"g"); r = str.match(re); if (r.length > 1)
{
result.isRepeated = true;
result.repeatedNumList[arr[i]] = r.length;
}
}var s = "无重数";
if (result.isRepeated)
{
s = "有重数";
for(var p in result.repeatedNumList)
s += "\n" + p + ": " + result.repeatedNumList[p] + "次";
}alert(s);
//-->
</script>
</body>
</html>