#include#include int main(){ int ch = 0; int count = 0; while((ch = getchar()) != EOF){ if(ch == '{'){ count++; } if(ch == '}' && count == 0){ printf("ERROR"); } if(ch == '}' && count != 0){ count--; } if(count == 0){ printf("RIGHT"); } else{ printf("ERROOR"); } system("pause"); } return 0; }
进入while循环,再用if语句来判断{}。



