allows you to monitor the sequence of procedures and functions during the execution of a program. The procedures are functions are displayed bottom to top with the most recent function or procedure call at the top of the list.
窗口，可以在程序执行的过程中监视过程和函数的序列。过程和函数按照调用的先后顺序由下至上排列，最近调用的函数或过程排在列表的最上面。