Explain the difference between a procedure call and a procedure declaration,and give an example.
问题描述：
Explain the difference between a procedure call and a procedure declaration,and give an example.
答
解释程序之间的调用和申报程序的差异，举一个例子。
答
When you declare a procedure, you are defining things about it, like its name, its return type, its arguments, and its arguments' return types. But you are not asking the procedure to do anything. Thi...