# 在双引号字符串中使用单引号 quote_in_string = "Python's syntax is clear." # 在单引号字符串中使用双引号 quote_in_string = 'He said, "Python is awesome."' 2.2 使用三引号 三引号(''' 或""")用于创建多行字符串,这在需要在字符串中保留格式时非常有用,如文档字符串(docstrings)或多行文本...
# A single quote stringsingle_quote='a'# This is an example of a character in other programming languages. It is a string in Python# Another single quote stringanother_single_quote='Programming teaches you patience.'# A double quote stringdouble_quote="aa"# Another double-quote stringanother...
defcheck_strings(strings):forstringinstrings:ifhas_single_quote(string):print(f"{string}contains single quote")else:print(f"{string}does not contain single quote")strings=["Hello, world!","I'm fine.","Python is awesome"]check_strings(strings) 1. 2. 3. 4. 5. 6. 7. 8. 9. 在上...
A string in Python is a sequence of characters. It is a derived data type. Strings are immutable. This means that once defined, they cannot be changed. Many Python methods, such asreplace,join, orsplitmodify strings. However, they do not modify the original string. They create a copy of...
It is a string in Python # Another single quote string another_single_quote = 'Programming teaches you patience.' # A double quote string double_quote = "aa" # Another double-quote string another_double_quote = "It is impossible until it is done!" # A triple quote string triple_quote ...
20.5. urllib — Open arbitrary resources by URL Replace special characters instringusing the...
Python has2quote types. '%'字符,用于标记转换符的起始。 映射键(可选),由加圆括号的字符序列组成 (例如(somename))。 >>>'name:%(name)s, age:%(age)s'% ({'name':'daming','age':'18'})'name:daming, age:18'#在此情况下格式中不能出现 * 标记符(因其需要一个序列类的参数列表)。
print quote(str_, safe=string.printable) File "/usr/lib/python2.7/urllib.py", line 1298, in quote return ''.join(map(quoter, s)) KeyError: u'\u8fd9 str_ ="http://www.baidu.com/这是网页的字符"#web编码时的,字符符合web要求,如这里的utf8,则正常执行printquote(str_, safe=string.prin...
1517Traceback (most recent call last): File "<string>", line 10, in print(quote.index('fun', 7, 18))ValueError: substring not found注意：Python中的索引从0而不是1开始。因此出现的是19而不是20。示例2：带有start 和end参数的index（）sentence = 'Python programming is fun.'# Substring...
Escape Sequences in Python The escape sequence is used to escape some of the characters present inside a string. Suppose we need to include both a double quote and a single quote inside a string, example ="He said, "What's there?"" print(example) # throws error ...