string.punctuation string.printable string.whitespace 2. 自定义字符串格式 2.1 class string.Formatter 3. 格式字符串语法 field_name conversion format_spec 3.1 格式规范Mini-Language 3.1.1 定义 3.1.2 各选项的含义 align sign # 选项 , 选项 _ 选项 width precision type 3.2. 格式化示例 4. strings模板...
whitespace -- a string containing all characters considered whitespace lowercase -- a string containing all characters considered lowercase letters uppercase -- a string containing all characters considered uppercase letters letters -- a string containing all characters considered letters digits -- a stri...
formatter_class -- HelpFormatter class for printing help messages prefix_chars -- Characters that prefix optional arguments fromfile_prefix_chars -- Characters that prefix files containing additional arguments argument_default -- The default value for all arguments conflict_handler -- String indicating ...
[string.Formatter](file:///Users/youngershen-mac-book-pro/Downloads/python-2.7.8-docs-html/library/string.html#string-formatting)类中的方法: format(format_string, *args, **kwargs) format方法是string.Formatter类中的主要方法,它的参数是一个你需要去格式化的目标字符串,和一组需要去填充目标字符串...
class Animal: def __init__(self, name): self.name = name def __str__(self): return "我是" + self.name def __repr__(self): return "我的名字是" + self.name if __name__ == "__main__": cat = Animal("小黑") print(cat) ...
<class '__main__.Animal'> 1. 2. 3. 4. 但是type()函数返回的是什么类型呢?它返回type类型。如果我们要在if语句中判断,就需要比较两个变量的type类型是否相同: >>> type(123)==type(456) True >>> type('abc')==type('123') True
(1)s:string,字符串;(2)d:decimal integer,十进制数;(3)i:integer,用法同%d;(4)u:unsigned integer,无符号十进制数;(5)f:float,浮点数(默认保留小数点后6位);(6)F:Float,浮点数(默认保留小数点后6位);(7)e:exponent,将数字表示为科学计数法(小写e,默认保留小数点后6位);(8)E:Exponent,将数字表...
ArgumentParser使用formatter_class入参来控制所输出的帮助格式。比如,通过指定formatter_class=argparse.RawTextHelpFormatter,我们可以让帮助内容遵循原始格式: 代码语言:javascript 复制 >>>importargparse>>>parser=argparse.ArgumentParser(...add_help=True,...formatter_class=argparse.RawTextHelpFormatter,...description...
pygments_formatter_class = None You can configure the Pygments formatter to use via thepygments_formatter_classconfig setting as a string (dotted path). This should be one of the following typically:"pygments.formatters.Terminal256Formatter","pygments.formatters.TerminalTrueColorFormatter", or"pygments...