console.log("Hello World!");
var str = "匹配matrix(1, 0, 0, 1, -500, 0)";
var reg = /([^,]+),[^,]+\)$/g;
console.time("111");
console.log(reg.exec(str)[1]);
console.timeEnd("111");
function findFour(str){
var len = str.length;
var count = 0;
var ret = '';
for(var i=0;i<len;i++){
if(str[i]==','){
if(count++==5) return ret;
}else if(count==4){
ret += str[i];
}
}
return ret;
}
console.time("222");
console.log(findFour(str));
console.timeEnd("222");