tup1 = (12, 34.56); 
tup2 = ('abc', 'xyz') # 以下修改元组元素操作是非法的。

# tup1[0] = 100# 创建一个新的元组
tup3 = tup1 + tup2; 
print(tup3)

(12,34.56,'abc','xyz')