学步园

var str="There is in every human being's heart the lure of wonder",<br /> reg=//b/w+/b(/s*)/g,temp,res=[];<br /> document.write(str+"<br/>");<br /> while((temp=reg.exec(str))!==null){<br /> res[res.length]=temp[0]+" "+<br /> (temp.lastIndex-temp[0].length) //起始索引=下次开始匹配索引-匹配字符长度<br /> +" - " +<br /> (temp.lastIndex-temp[1].length-1);<br /> }<br /> document.write(res.join("<br/>"));