从键盘输入一字符串（其中包含多个&字符，字符串以$作为结束符，）编写程序，将其中的&字符删除，并将&字符删除的字符串显示在屏幕上-Enter a string　the keyboard (which contains a plurality of the & character, string $ as the end character) to write programs, will be one of the & character to delete, and & character string to delete is displayed on the screen