左右高相等

  pageHeight:function () {
        var a = $(".pagenewsright").outerHeight();
        var b = $(".pagenewsleft").height(a);
        var c = $(".pagenewsleft").outerHeight();
        if(c == a){
            c == a
        }else {
            c=c+10
        }
        $(".pagenewsright").height(c);

    }