To improve readability, use keyword arguments in .format() and then reference the same arguments within braces:python Copy mass_percentage = "1/6" print("""You are lighter on the {moon}, because on the {moon} you would weigh about {mass} of your weight on Earth.""".format(moon="...
String formatting in Python | \n | 换行 | | \t | 制表符 | | \ | 转义 | | \\ | \ | the '%' operator is used to format a set of variables enclosed in a "tuple" ( a fixed size list) | %s | string | | %d | integers | | %f | floating point numbers | | %.<number ...
>>>print(" I love {1} and {0}".format("python","django")) I love djangoandpython Here we passed the index of the arguments in the reverse order, so the first pair of curly braces gets substitute by the second argument and the second one by the first argument. ...
print('{} is {} years old'.format(name, age)) 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. $ ...
PythonString Formatting ❮ PreviousNext ❯ F-String was introduced in Python 3.6, and is now the preferred way of formatting strings. Before Python 3.6 we had to use theformat()method. F-Strings F-string allows you to format selected parts of a string. ...
We can optionally specify type conversion andformat_specoptions in a formatted string or a string with theformat()method. Example: >>>price=0.30>>>price0.3>>>f'{price:.2f}''0.30'>>>'{:.2f}'.format(price)'0.30' Python An exclamation mark denotes a conversion and a colon denotes aform...
You can specify the<values>inserted into the format string as a dictionary instead of a tuple. In that case, each conversion specifier must contain one of the dictionary keys in parentheses immediately following the%character: Python >>>"%d%scost $%.2f"%(6,"bananas",1.74)'6 bananas cost ...
Python 3.6.9 1. 引言 Python中格式化字符串的方式有,一种是用%操作符来进行字符串格式化,一种是使用str.format()来进行字符串格式化,本文主要介绍str.format()方式,这种方式更主流,也是官方推荐的方式,%的方式后面会逐渐淘汰。 2. 格式化字符串 2.1 基本语法 ...
python3.6引入了一种新的字符串格式化方式:f-string格式化字符串。从%s格式化到format格式化再到f-string格式化,格式化的方式越来越直观,f-string的效率也较前两个高一些,使用起来也比前两个简单一些。同时值得注意的是,f-string就是在format格式化的基础之上做了一些变动,核心使用思想和format一样。
1 导入string库文件,输入命令:gedit /usr/lib/python2.7/string.py,如图所示:第537--656行,主要包含:format,vformat,_vformat等函数.调用关系format->vformat->_vformat,我们从底层一步步分析代码如何实现.2 首先看函数_vformat(self, format_string, args, kwargs, used_args, recursion_depth):1:568行...