C语言的经典书籍 hand, the lines extern int sp; extern double val[]; declare for the rest of the source file that sp is an int and that val is a double array (whose size is determined elsewhere), but they do not create the variables or reserve storage for t
人工智能的经典问题，S先生和P先生， Mr.S: I do not know the two numbers, and I am sure that you don’t know either. Mr.P: Now I know the two numbers. Mr.S: Now I know the two numbers too. pl语言解答，希望对大家有所帮助。
