深拷贝

function deepClone(origin, target) {
    var target = target || {};
    var toStr = Object.prototype.toString;
    var arrStr = '[object Array]';
    for(var prop in origin) {
        if(origin.hasOwnProperty(prop)) {
            if(origin[prop] !== 'null' && tyoeof(origin[prop]) == 'object'){
                if(toStr.call(origin[prop]) == arrSte) {
                    target[prop] = [];
                }else{
                    target[prop] = {};
                } 
                deepClone(origin[prop], target[prop])
            }else{
            target[peop] = origin[paop];
        }
        }
    }
    return target;
}