JS Format函数

$.GM.Format = function (source, params) {
        if (arguments.length == 1)
            return function () {
                var args = $.makeArray(arguments);
                args.unshift(source);
                return $.format.apply(this, args);
            };
        if (arguments.length > 2 && params.constructor != Array) {
            params = $.makeArray(arguments).slice(1);
        }
        if (params.constructor != Array) {
            params = [params];
        }
        $.each(params, function (i, n) {
            source = source.replace(new RegExp("\\{" + i + "\\}", "g"), n);
        });
        return source;
    }