复杂数组赋值问题，只能引用传递？

用深复制看看var DeepCopy = function(destination, source){
    for (var property in source) {
        var copy = source[property];
        if ( destination === copy ) continue;
        if ( typeof copy === "object" ){
            destination[property] = DeepCopy(destination[property] || {}, copy);
        }else{
            destination[property] = copy;
        }    }
    return destination;
}