\$ 美元符 dollar sign 定义模板字符串的参数 template-strings import string teaInfo={'ID':'0818','Name':'Jack','Age':21,'Addr':'Beijing'} t = string.Template("【学号】: $ID\n【姓名】: $Name\n【年龄】:${Age}岁\n【地址】:$Addr")
f-string 是 Python 3.6 加入的字符串格式化功能，也是现在比较推崇的格式化方法。操作方式为「f」后跟...
To create a template string with Template, you need a regular Python string with embedded placeholders. These placeholders consist of two parts: The dollar sign ($) A valid Python identifier Valid identifiers are those that you can use as variable names in Python. They combine uppercase and lo...
原始字符串(raw string)是所有的字符串都是直接按照字面的意思来使用,没有转义特殊或不能打印的字符,通常简称为 r-string。 如果没有转义字符,原始字符串和普通字符串是一样的,比如 print('hello')print(r'hello') hello hello 如果有转义字符(...
This f-string contains three pairs of curly braces ({}). Each pair contains an expression that’s interpolated into the final string. The first expression only refers to major directly, while the second one applies a small operation on minor....
The dollar ($) matches the regular expression pattern at the end of the string When this flag is specified, the pattern character^matches at the beginning of the string and each newline’s start (\n). And the metacharacter character$match at the end of the string and the end of each ...
str1 ="Emma is a Python developer \nEmma also knows ML and AI"# dollar sign($) to match at the end of the stringresult = re.search(r"\w{2}$", str1) print(result.group())# Output 'AI' Run Regex*asterisk/star metacharacter ...
value=”$”, name=”DOLLAR SIGN”, value2=”$” 1. 2. 3. 4. 5. 6. 7. 8. 指定特殊的编码: >>>import unicodedata >>>('\u00e9') 'LATIN SMALL LETTER E WITH ACUTE' >>>unicodedata.lookup('LATIN SMALL LETTER E WITH ACUTE') ...
pygame.display.set_palette() — Set the display color palette for indexed displays 这个模块提供控制 Pygame 显示界面(display)的各种函数。Pygame 的 Surface 对象即可显示为一个窗口,也可以全屏模式显示。当你创建并显示一个常规的 Surface 对象后,在该对象上的改变并不会立刻反映到可见屏幕上,你必须选择一个...
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