Hello 742970882@qq.com,
Depending on code optimization options used to build the executable file, you might not see exactly the flow that you have in your code. If you enable the Instruction Stepping Mode (up-left, blue circle in the picture) you can navigate through the disassembly of your code. You can see that in this example (the uart example from our toolbox), the code is generating the call to MC_MODE_INIT() and it is called. Furthermore, you can enter in the disassembly window an address/function name and it will navigate you to the desired function. You can also have breakpoints here, so you can search MC_MODE_INIT in the disassembly window, put a breakpoint there and see it get called.

Hope this helps,
Razvan.