I’m using the %s format specifier here to tell Python where to subsitute the value of name, represented as a string. This is called “old style” string formatting. In old style string formatting there are also other format specifiers available that let you control the output string. For e...
I’m using the%sformat specifier here to tell Python where to subsitute the value of name, represented as a string. This is called“old style”string formatting. In old style string formatting there are also other format specifiers available that let you control the output string. For example,...
Doing String Interpolation With F-Strings in Python Formatting Strings With Python’s F-String Other Relevant Features of F-Strings Upgrading F-Strings: Python 3.12 and Beyond Using Traditional String Formatting Tools Over F-Strings Converting Old String Into F-Strings Automatically Frequently Ask...
%s表示替换的是个字符串(String) %d表示替换的是个整数(Integer) %f表示替换的浮点数(Float) %x和%X表示替换的是整数的16进制表示,分别是小写和大写 下面我们看一个更复杂的例子 name="Jack"age=18height=175.5print("%sis%dyears old, with a height of%f"%(name,age,height))# ==> Jack is 18 years ...
The first two tools support the string formatting mini-language, a feature that allows you to fine-tune your strings. The third tool is a bit old and has fewer formatting options. However, you can use it to do some minimal formatting. Note: The built-in format() function is yet another...
Later in Python 2's history, a different style was introduced, called simplystring formatting(yes, that's the official name). Its very different syntax makes any Python string a potential template, inserting values through thestr.format()method. ...
'PYTHON STRING' >>> str.lower() #转小写 'python string' >>> str.capitalize() #字符串首为大写,其余小写 'Python string' >>> str.swapcase() #大小写对换 'pYTHON STring' >>> str.title() #以分隔符为标记,首字符为大写,其余为小写 'Python String' 3.>字符串条件判断 1 2 3 4 5...
Since Python 3.0, theformatfunction was introduced to provide advance formatting options. print(f'{name} is {age} years old') Python f-strings are available since Python 3.6. The string has thefprefix and uses{}to evaluate variables.
1,234.57*my string* 您可以通过调用字符串的format方法来格式化多个值。format方法使用{}作为占位符,而不是使用%d这样的C风格格式说明符。在默认情况下,格式化字符串中的占位符按着它们出现的顺序传递给format方法相应位置的占位符。 代码语言:javascript
# Basic string formatting comparison import timeit name = "Python" version = 3.9 # Using + operator (slowest for multiple items) def concat_plus(): return "Running " + name + " version " + str(version) # Using % formatting (old style) def format_percent(): return "Running %s version...