var aa = '"whe":"%20and%20s7%20in(1,2,3,4,5,40,39,38,37,36)%20","FDSFS":"FSS,SS"';
aa = aa.replace(/(?:\")(\,)+(?:\")/g,"\"\"$1\"\"").split(/\"\,\"/);
console.log(aa[0]);
console.log(aa[1]);
console.log(aa.length);试试,代码虽说不是很优的
暂时只能想到这个。