编写一程序，将从键盘输入的每个月份数(整数)显示出其对应的英文，直至输入0结束，注意对非法数据的处理。 (while,switch语句)

-Write a program from the keypad to enter the number of copies of each month (an integer) shows its corresponding English, enter 0 until the end, pay attention to the illegal data processing. (while, switch statement)