a StackEmpty int StackEmpty(SeqStack *S)i if(S->top=S->base) return1判栈空空则返回1 else return0;/否则返回0 Makeempty void MakeEmpty(stack S) iS->top==S->base i▪ StackEmpty int StackEmpty (SeqStack *S) { if( S->top == S->base ) return 1 //判栈空,空则返回1 else return 0; //否则返回0 } ▪ MakeEmpty void MakeEmpty(Stack s) {S->top == S->base ;}