function deepCopy(obj, type) {
        var temp = type || {}
        for (var k in obj) {
            if (Object.prototype.toString.call(obj[k]) === '[object Object]') {
                temp[k] = deepCopy(obj[k], {})
            } else if (Object.prototype.toString.call(obj[k]) === '[object Array]') {
                temp[k] = deepCopy(obj[k], [])
            } else {
                temp[k] = obj[k]
            }
        }
        return temp
    }
//进化版1
    function deepCopy(obj) {
        var temp = Array.isArray(obj) ? [] : {}
        for (var k in obj) {
            if (Object.prototype.toString.call(obj[k]) === '[object Object]') {
                temp[k] = deepCopy(obj[k])
            } else if   (Object.prototype.toString.call(obj[k]) === '[object Array]') {
                temp[k] = deepCopy(obj[k])
            } else {
                temp[k] = obj[k]
            }
        }
        return temp
    }

    //进化版2
    function deepCopy(obj) {
        var temp = Array.isArray(obj) ? [] : {}
        for (var k in obj) {
            var objType = Object.prototype.toString.call(obj[k])
            if ( objType === '[object Object]' || objType === '[object Array]') {
                temp[k] = deepCopy(obj[k])
            }else {
                temp[k] = obj[k]
            }
        }
        return temp
    }