def decapitalize_first_letter(s, upper_rest=False): # Join the first letter in lowercase with the rest of the string, optionally capitalizing the rest return ''.join([s[:1].lower(), (s[1:].upper() if upper_rest else s[1:])]) # Test the function with different input strings and...
for example, if we have a text that’s too long to display and we want to show just a portion of it. Or if we want to make an acronym by taking the first letter of each word in a phrase. We can do that through an operation calledstring indexing.This...
本文材料均来自于MOOC的免费课程Python程序设计(https://www.icourse163.org/course/BIT-268001) python基础的随笔更多是偏向于我个人代码实现和讨论,所以对于知识点不会有一个比较输入的说明,知识点可能会在之后系列再做总结。如果后面总结知识点我大概率会手打,截图属实起不到加强记忆的效果,如果可以我会尽量做一个...
Let’s look at a couple of common sequence operations on strings. 让我先定义一个字符串。 Let me first define a string. 让我们来看看“Python” Let’s just go with "Python." 同样,如果我想知道我的字符串有多长,我可以使用len函数。 Again, if I wanted to find out how long is my string,...
of its own TLSandcrypto libraries. If you need to have this software firstinyour PATH run: echo'export PATH="/usr/local/opt/openssl/bin:$PATH"'>> ~/.bash_profile For compilers to find this software you may need toset: LDFLAGS: -L/usr/local/opt/openssl/lib ...
1. text.capitalize(): capitalize a letter This Python function capitalizes the first letter of a string. Note that if this string is an entire sentence, it will not capitalize every word; just the first word. But if you wanted to capitalize a name, for instance, you could use text.capi...
In the above example, you use the %s combination of characters as a conversion specifier. The % symbol marks the start of the specifier, while the s letter is the conversion type and tells the operator that you want to convert the input object into a string....
This example demonstrates how to use the any and isalpha functions to check if a character string contains a letter from the alphabet.Let’s check our first character string my_string1:print(any(c.isalpha() for c in my_string1)) # Check if letters are contained in string # True...
1. Python数据类型(6个) 1.1 数值型(number) 1.2 字符型(string) 字符串常用方法 转义字符 可迭代性 f-string 1.3 列表(list) 1.4 字典(dictionary) 1.5 集合(set) 1.6 元组(tuple) 1.7 内存视图Memoryview 2. 动态引用、强类型 3. 二元运算符和比较运算 4. 标量类型 5. 三元表达式 ...
The first letter of 'hello' is 'h'. (7)数字的处理 ① 保留小数位数 str1 = "π is {:.2f}.".format(3.1415926) #保留两位小数 print(str1) 执行以上代码,输出结果为: π is 3.14. ② 给数字加千位符 str1 = "{:,}".format(100000000) print(str1) 执行以上代码,输出结果为: 100,000,000...