方法一:使用in操作符 Python中的字符串可以使用in操作符来判断是否包含某个子字符串。我们可以使用双引号作为子字符串,然后通过in操作符来判断原字符串中是否包含双引号。 # 判断字符串是否存在双引号defhas_double_quotes(string):if'"'instring:returnTrueelse:returnFalse# 示例string1='This is a string with ...
而在标准的 Python 风格指南 PEP 8 中,推荐使用双引号来定义字符串。 PEP 8 引用形式的描述信息:String quotes: In Python, single-quoted strings and double-quoted strings are the same. This PEP does not make a recommendation for this. Pick a rule and stick to it. 代码示例 下面是一个简单的代...
Strings in python are surrounded by either single quotation marks, or double quotation marks. 'hello'is the same as"hello". You can display a string literal with theprint()function: ExampleGet your own Python Server print("Hello") print('Hello') ...
# 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...
size -- file size in bytes a_kilobyte_is_1024_bytes -- if True (default), use multiples of 1024 if False, use multiples of 1000 Returns: string 注意,是使用了函数的“__doc__”属性来获取它的文档字符串。 文档字符串的标准格式:
>>> 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 https://github.com/codists/practical-python-zh 分类: 实用的Python编程...
# 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...
Triple Single Quotes Printing Double Quotes with a String Variable Let’s see them one by one using demonstrative examples, Method 1: How to print quotation marks in Python using escape character(\) In cases where we need to print both single and double quotes in the same string, we can ...
(官网上有一段描述是 “A string is a sequence of zero or more Unicode characters, wrapped in double quotes, using backslash escapes” ) 因此下面的转换是错误的: 代码语言:javascript 复制 >>>importjson>>>user_info="{'name' : 'john', 'gender' : 'male', 'age': 28}"# 由于字符串使用单...
>>> 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 ...