因为输入里有```'!'```,而```'!'-'A```为$-32$,数组下标为负数,所以就**RE**了 解决方法:在输入时特判 ``` if(str[i][j]>='A'&&str[i][j]<='Z') ``` by 永远爱循环 @ 2022-10-20 09:01:20