When the signal is triggered, print and output once.
Ally22 lines of info where I know it's wrong, how to get a signal and print out the specified information.
Inventors quantify - small dreams OK。
AllyWell, that's settled.
Inventors quantify - small dreamsWhat's up? INFO (conditions, data to be printed); What's up? If the condition is true, it will be printed, otherwise it will not be printed.