如何根据python列表中的内容以特定的顺序/格式读取和打印列表？

my_list = ['apple', 'banana', 'orange', 'grape']

# 使用循环遍历列表并按特定顺序/格式打印
for item in my_list:
    print(f"I have a {item}.")

# 输出结果：
# I have a apple.
# I have a banana.
# I have a orange.
# I have a grape.

my_list = ['apple', 'banana', 'orange', 'grape']

# 使用循环和索引按特定顺序/格式打印列表
for i in range(len(my_list)-1, -1, -1):
    print(f"I have a {my_list[i]}.")

# 输出结果：
# I have a grape.
# I have a orange.
# I have a banana.
# I have a apple.