function deepClone(data){
if(!data || !(data instanceof Object) || (typeof data=="function"))
{
return data||undefined;
}
var constructor = data.constructor;
var result = new constructor();
for(var key in data){
if(data.hasOwnProperty(key)){
result[key]=deepClone(data[key]);
}
}
原生js深拷贝函数
原文：https://www.cnblogs.com/luckyXcc/p/11122669.html
