功能：检验主串中是否有模式串，若有则找出相应位置操作方法：按照提示，输入主串，回车确认，接着输入模式串，回车确认输入-Function: inspection of Lord whether any pattern strings, if have, find out the corresponding positionOperation method:According to clew, the master string, the carriage return confirmation, then input mode string, enter confirm input