JavaScript如何實(shí)現(xiàn)多重繼承

    javascript 面向?qū)ο笫菍?shí)現(xiàn)類的多重繼承。具體代碼如下：
    function multipleinheritPrototype() {
    if (arguments.length == 0) {
    return;
    }
    var args = arguments;
    var sub = args[0];
    var constructor = sub.prototype.constructor;
    if (!Object.create) {
    Object.prototype.create = function (obj) {
    function f() {
    }
    f.prototype = obj;
    return new f();
    };
    }
    var base;
    for (var i = 1; i < args.length; i++) {
    base = Object.create(args[i].prototype);
    for (var attr in base) {
    sub.prototype[attr] = base[attr];
    }
    }
    sub.prototype.constructor = constructor;
    }