# 单引号创建字符串 string_with_single_quotes = 'Hello, Python!' # 双引号创建字符串 string_with_double_quotes = "Hello, Python!" 使用双引号可以在字符串中包含单引号,而不需要转义它们,反之亦然。 # 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...
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 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...
Python allows single quotes ('), double quotes ("), and triple quotes (''' or """). The choice of which quotes to use depends on our preferences and the specific requirements of the string you want to create. Single Quotes: single_quote_str = 'Single quotes are used in this string....
>>> help(s.upper) Help on built-in function upper: upper(...) S.upper() -> string Return a copy of the string S converted to uppercase. >>> 目录 | 上一节 (1.3 数字)| 下一节 (1.5 列表) 注:完整翻译见 codists/practical-python-zh ...
>>> symbols[-2] # Negative indices are from end of string ? >>> 在Python 语言中,字符串是只读的。尝试通过将 symbols 字符串的第一个字符变为小写字母 ‘a’ 来验证这一点。>>> symbols[0] = 'a' Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: '...
# A single quote string single_quote = 'a' # This is an example of a character in other programming languages. It is a string in Python # Another single quote string another_single_quote = 'Programming teaches you patience.' # A double quote string ...
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 ...
re.search(pattern, string, flags=0) 扫描整个 字符串 找到匹配样式的第一个位置,并返回一个相应的 匹配对象。如果没有匹配,就返回一个 None; 注意这和找到一个零长度匹配是不同的。 re.match(pattern, string, flags=0) 如果string 开始的0或者多个字符匹配到了正则表达式样式,就返回一个相应的 匹配对象...
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 ...