[计] conditional breakpoint expression
tiáo jiàn duàn diǎn biǎo dá shì ㄊㄧㄠˊ ㄐㄧㄢˋ ㄉㄨㄢˋ ㄉㄧㄢˇ ㄅㄧㄠˇ ㄉㄚˊ ㄕˋ