索引
每当需要访问最后一个列表元素时,都可使用索引-1 。这在任何情况下都行之有效,即便你最后一次访问列表后,其长度发生了变化
motorcycles = ['honda', 'yamaha', 'suzuki']
print(motorcycles[-1])
result
suzuki
仅当列表为空时,这种访问最后一个元素的方式才会导致错误
超出数组边界导致索引错误 Traceback (most recent call last): File “4839957.py”, line 2, in print(motorcycles[3]) IndexError: list index out of range
Traceback(最近的调用): 文件"4839957.py",第2行,在 打印(摩托车[3]) 索引错误:列表索引超出范围
for循环
individuals = ['ZhangSan', 'LiSi', 'WangWu']
for individuals in individuals:
print(individuals.title() + ", he is an extraordinary undergraduate!")
print("I can't wait to ask you for more details about you, " + individuals.title() + ".\n")
result
Zhangsan, he is an extraordinary undergraduate! I can’t wait to ask you for more details about you, Zhangsan.
Lisi, he is an extraordinary undergraduate! I can’t wait to ask you for more details about you, Lisi.
Wangwu, he is an extraordinary undergraduate! I can’t wait to ask you for more details about you, Wangwu.
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