该程序是一个调用子程序实现字符串排序并在其中插入一个字符串。待字符串保存在WORD_LIST中，待插入字符串保存在BOY中。-The program is a subroutine call and the realization of the string order in which to insert a string. String to be stored in WORD_LIST in, to be inserted in the string stored in the BOY.