针对基本类型及对象类型

function deepClone(data) {
    var str, obj = data.constructor === Array ? [] : {};
    if (typeof data !== 'object') {
        return data;
    } else {
        for (var i in data) {
            obj[i] = typeof data[i] === 'object' ?
                deepClone(data[i]) : data[i]; //递归处理嵌套
        }
    }
    return obj;
};