flex columnChart不使用自带的toolTip而自定义方法实现了鼠标停留在柱状图的柱子上获取到相关的信息并且弹出的信息框还可以进行操作-

flex columnChart ToolTip not use its own custom methods and realized the mouse over the histogram to obtain information related to the column and the pop-up message box can also be operated