include<stdio.h> int main(){ int i,j,m,n;printf("输入矩形的常和宽:\n");scanf("%ld",&m);scanf("%ld",&n);for(i=0;i<m;i++)printf("-");printf("\n");for(j=0;j<n;j++){ printf("|");for(i=0;i<(m-2);i++)printf(" ");printf("|\n");} for(i=0...
回答：for循环里(i=n,i<=n;i--)