ascii_letters：'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'ascii_lowercase：'abcdefghijklmnopqrstuvwxyz'ascii_uppercase：'ABCDEFGHIJKLMNOPQRSTUVWXYZ'capwords：<function capwords at 0x000001CCBCA76160>digits：'0123456789'hexdigits：'0123456789abcdefABCDEF'octdigits：'01234567'printable：'0123456789abcdef...
return 'Test str function.' def __repr__(self): return 'Test repr function.' def __ascii__(self): return 'Test ascii function.' print('str: {t!s}, repr: {t!r}, ascii: {t!a}'.format(t=Test())) # Ouput str: Test str function., repr: Test repr function., ascii: Test ...
function Format(const Format: string; const Args: array of const): string; overload; 事实上Format方法有两个种形式,另外一种是三个参数的,主要区别在于它是线程安全的, 但并不多用,所以这里只对第一个介绍: function Format(const Format: string; const Args: array of const): string; overload; For...
use multiples of 1024 if False, use multiples of 1000 Returns: string """ if size < 0: raise ValueError("number must be non-negative") multiple = 1024 if a_kilobyte_is_1024_bytes else 1000 for suffix in SUFFIXES[multiple]: size /= multiple if size < multiple: return "{0:.1f} {1...
print("s2.title() = {function}".format(function = s2.title())) Output: s2.title() = 123A Abc Abcsaa S 6.str.center() str.center(宽度,填充字符) 将字符串以居中的格式返回,若宽度值比len(s)小则返回原字符串,填充以从左到右为规则,填充字符的默认值为空格,值可以自己更改 ...
Python, format() function 您只对最后一个字符串"{p2"}调用format(),因为.的优先级高于+。您需要将连接放在括号中。 date_time = lambda D: ("{day} {month} {year} year {hour} hour"+"{p1} "+"{minute} minute"+"{p2}").format(day=str(int(D.split('.')[0])),month=Months[D.split(...
multi_line_str = '''This is a multi-line string.''' doc_string = """A docstring for function: def some_function(): pass""" 2.3 str() 函数 虽然通常不需要,但也可以用 str() 函数将其他类型转换为字符串。 integer_to_string = str(42) # 输出:'42' float_to_string = str(3.14) #...
You can also include function calls, attribute access, common sequence operations like indexing and slicing, and more.Note: To learn more about using f-strings in Python, check out the Python’s F-String for String Interpolation and Formatting tutorial....
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.
Use the string methodupper()to convert a value into upper case letters: fruit ="apples" txt = f"I love {fruit.upper()}" print(txt) Try it Yourself » The function does not have to be a built-in Python method, you can create your own functions and use them: ...