python是如何存储、连接和切片字符串的？

string1 = 'Hello'
string2 = "World"

multiline_string = '''
This is a multiline
string example.
'''

string1 = 'Hello'
string2 = 'World'
concatenated_string = string1 + ' ' + string2
print(concatenated_string)  # 输出：Hello World

string_list = ['Hello', 'World']
joined_string = ' '.join(string_list)
print(joined_string)  # 输出：Hello World

string = 'Hello World'
substring = string[0:5]  # 获取索引为0到4的字符（不包括索引5）
print(substring)  # 输出：Hello

last_three_chars = string[-3:]  # 获取最后三个字符
print(last_three_chars)  # 输出：rld

first_five_chars = string[:5]  # 获取前五个字符
print(first_five_chars)  # 输出：Hello

last_five_chars = string[-5:]  # 获取最后五个字符
print(last_five_chars)  # 输出：World