求lz看下我的问题，本地能过但结果0 t = int(input()) ret = [] qq = [] qq.append(0) res = [] for i in range(t): q = int(input()) qq.append(q) for _ in range(q): s = input() ret.append(s.split()) for i in range(t): for j in range(qq[i+1]): if len(ret[j+qq[i]]) == 2: res.append(ret[j+qq[i]][1]) else : if ret[j+qq[i]][0] == 'TOP': if len(res) == 0: print(-1) else: print(res[0]) if ret[j+qq[i]][0] == 'POP': if len(res) == 0: print(-1) else: res.pop(0) if ret[j+qq[i]][0] == 'SIZE': print(len(res)) if ret[j+qq[i]][0] == 'CLEAR': res = [] res = []