//解决IE10以下不支持Function.bind

if (!Function.prototype.bind) {

    Function.prototype.bind = function(oThis) {

        if (typeof this !== "function") {

            throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");

        }

        var aArgs = Array.prototype.slice.call(arguments, 1),

            fToBind = this,

            fNOP = function() {},

            fBound = function() {

                return fToBind.apply(this instanceof fNOP && oThis ? this : oThis,

                    aArgs.concat(Array.prototype.slice.call(arguments)));

            };

        fNOP.prototype = this.prototype;

        fBound.prototype = new fNOP();

        return fBound;

    };

}