For modularity and to introduce the concept of functions, the sort routine itself is implemented as a separate procedure along with the array print routine.
为了实现模块化和介绍函数的概念，排序例程本身实现为一个单独的过程，数组输出例程也是这样。
2
This function USES the display procedure to print a string to the screen.
该函数使用display过程将一个字符串打印到屏幕上。
3
This procedure is cumbersome, as the same print command has to be run several times to display each node at a time.