var keys = ["a1","a2","a3","a10","a11"];
var keys = keys.sort(function(a,b){
return parseInt(a.replace(/a/g,"")) - parseInt(b.replace(/a/g,""));
});
console.log("排序:",keys);
var keys = ["a1","a2","a3","a10","a11"];
var keys = keys.sort(function(a,b){
return parseInt(a.replace(/a/g,"")) - parseInt(b.replace(/a/g,""));
});
console.log("排序:",keys);