programmed symbol造句

Pioneered by graffiti artists, the abnormal ( or specialized ) use of punctuation posed a problem when certain computer programming symbols are read as commands for a program to follow.
Later models included " base colour " support for four colours . " In base color mode, the protection and intensity bits are used in combination to select among four colors : normally white, red, blue, and green; the protection bits retain their protection functions as well as determining color . " Still later models used " extended attributes " to add support for seven colours, blinking, reverse video, underscoring, field outlining, field validation, and programmed symbols.
It's difficult to find programmed symbol in a sentence. 用programmed symbol造句挺难的