vc 调试黄色箭头边带小蓝点是什么意思？
有时候箭头边没小圆圈，有时候有，是什么情况？
[解决办法]
Edit&Continue is a powerful tool for debugging. Together with incremental compilation
it allows to regenerate the object code during a debug session,
and continue the debugging with the new code without restarting the program.
Press F10 after you changes source code and enjoy.
F7 resets the session - forget it.
Another related tool is the "Set instruction pointer" debugger command,
which is available only from Tools/Customize/Commands/Debug.
It looks as an yellow arrow with a blue thin curved arrow.
Move it to your toolbar and enjoy.

用google刚搜到的，可能是这个意思。