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var reg = new RegExp("(http://www.qidian.com/BookReader/)(\\d+),(\\d+).aspx","gi");
var url = "http://www.qidian.com/BookReader/10133,222.aspx";
var rep = url.replace(reg,"$3$2$1");
alert(rep);
document.write( window.navigator.userAgent ) //看下什么浏览器
document.write("".replace+"") //replace方法没有被替换
alert( "123".replace(/.(2)./,'$1') ); // 试一下是不是不能用$1
var reg = new RegExp("(http://www.qidian.com/BookReader/)(\\d+),(\\d+).aspx","gi");
var url = "http://www.qidian.com/BookReader/10133,222.aspx";
var rep = url.replace(reg,function(_,a,b,c){return c+b+a } );
alert(rep)
[/quote]
$1
function(p0,p1,p2,p3){[bytecode]}
alert( "123".replace(/.(2)./,'$1') ); // 试一下是不是不能用$1
var reg = new RegExp("(http://www.qidian.com/BookReader/)(\\d+),(\\d+).aspx","gi");
var url = "http://www.qidian.com/BookReader/10133,222.aspx";
var rep = url.replace(reg,function(_,a,b,c){return c+b+a } );
alert(rep)
var reg = new RegExp("(http://www.qidian.com/BookReader/)(\\d+),(\\d+).aspx","gi");
var url = "http://www.qidian.com/BookReader/10133,222.aspx";
alert(reg);// 看下正则对不对
alert( reg.test(url) )
alert(RegExp.$1);