Hi 王 威,
You cannot do this in a bar chart the way you show, it would require stacking multiple measures at the same time as using multiple dimensions, which we currently do not support.
My suggestion is that you instead use a combo chart, which also might be more suited for this task (depending a bit on what data you are looking at of course).
In this example I have created a combo chart with four measures (your four colors), used three of them as bars and stacked them, with the last measure as a line.. This gives you a nice way of comparing the actual value to the budget.