利用MSCHart做柱状图，饼状图，拆线图。有时数据项太多，想用个滚动条很不好加，找不到好的资料自己加了一个，虽不正宗，大家也是参考- use MSCHart to draw pie or bar.just because here are no scrollbar ,so bad to use ,and can t find a good one .so add by myself.