使用这个可以方便产生
Call Graphs
Called by Graphs
Number of Call Occurrences (Value: 2)
This metric shows the number of calls in a function body.
Number of Called Functions (Value: 1)
This metric shows the number of callees of a function. (在该函数的内部实现中调用了别的函数)
Number of Calling Functions (Value: 0)
This metric shows the number of distinct callers of a function.
下图是Call Graph :