tup1=("a","b",123, "Python", "nsmc"“"C") tup1[3][-1:1:2]第二条语句显示的结果是

tup1=("a","b",123, "Python", "nsmc"“"C") tup1[3][-1:1:2]第二条语句显示的结果是

tup1=("a","b",123, "Python", "nsmc","C")
print(tup1[3][-1:1:2])
没有输出
你是不是在nsmc和c之前还有别的东西，题目写错了