使用Python查找序列

sequence = [2, 4, 6, 8, 10]
element = 6
index = sequence.index(element)
print("元素 {} 的索引位置为：{}".format(element, index))

sequence = [2, 4, 6, 8, 10]
element = 6
if element in sequence:
    print("序列中包含元素 {}".format(element))
else:
    print("序列中不包含元素 {}".format(element))

sequence = [2, 4, 6, 6, 8, 10]
element = 6
count = sequence.count(element)
print("元素 {} 在序列中出现的次数为：{}".format(element, count))

sequence = [1, 2, 3, 4, 5, 6, 7]
sub_sequence = [3, 4]
index = sequence.find(sub_sequence)
print("子序列 {} 的索引位置为：{}".format(sub_sequence, index))

sequence = "Hello, World!"
prefix = "Hello"
suffix = "World!"
if sequence.startswith(prefix):
    print("序列以 {} 开头".format(prefix))
if sequence.endswith(suffix):
    print("序列以 {} 结束".format(suffix))