如果你想改变原来的字符串,你必须调用字符串上的upper()或lower(),然后把新的字符串赋给原来存储的变量。这就是为什么你必须使用spam = spam.upper()来改变spam中的字符串,而不是简单地使用spam.upper()。(这就像变量eggs包含值10。写eggs + 3不会改变eggs的值,但eggs = eggs + 3会。) 如果您
Before we convert a moviegoer’s name to uppercase on their ticket, we should first check to see if the name has already been converted to uppercase. This would allow us to make our code more efficient because we would not be converting a string to uppercase that was already formatted in...
&& mypy --strict $WORKDIR 又比如使用 Makefile 文件并搭配make构建命令: .PHONY: all fmt check WORKDIR := . fmt: @echo "formatting code..." @isort -v $(WORKDIR) @black -v --skip-string-normalization $(WORKDIR) @echo "formatting code done." check: @echo "checking code..." @flake8 ...
Return a capitalized version of the string. ---> 返回字符串的大写版本 More specifically, make the first character have upper case and the rest lower case. ---> 更具体的说,使第一个字符具有大写字母,其余字母为小写字母 ''' 1. 2. 3. 4. 5. 6. print(s.capitalize()) 1. 2.title()方...
More specifically, make the first character have upper case and the rest lower case. ---> 更具体的说,使第一个字符具有大写字母,其余字母为小写字母 ''' print(s.capitalize()) 2.title()方法 ''' title() 方法: Return a version of the string where each word is titlecased.--> 返回一个字...
In this case, we are asking it to display an error, and Python will assume it should return a code of 1 (error encountered) since we have done this. We can use any number in this function if we want to make custom error codes. Once we have assigned our remaining list items into ...
def make_uppercase(): def processor(iterator): for line in iterator: yield line.upper() return processor @cli.command('lowercase') def make_lowercase(): def processor(iterator): for line in iterator: yield line.lower() return processor ...
谷歌表格是一个免费的基于网络的电子表格应用,任何拥有 Google 账户或 Gmail 地址的人都可以使用,它已经成为 Excel 的一个有用的、功能丰富的竞争对手。谷歌表格有自己的API,但是这个 API 学习和使用起来会很混乱。本章涵盖 EZSheets 第三方模块,记录在。虽然不如官方的谷歌表格API 功能全面,但 EZSheets 使常见的...
Return a capitalized version of S, i.e. make the first character have upper case and the rest lower case. 返回值首字母大写,其余小写,不改变数据本身 实例: a = “start” a.caplitalize() Start (2)str.title() Help on method_descriptor: ...
make the first character have upper case and the rest lower case.(返回第一个字符大写,其他小写) 1. 2. 3. 4. 5. 6. """ return "" 1. 2. def casefold(self): # real signature unknown; restored from __doc__ """ S.casefold() -> str Return a version of S suitable for caseless...