from.string_utilsimportto_uppercase, to_lowercase from.math_utilsimportadd, multiply from.file_utilsimportread_file, write_file 使用工具包 # main.py fromutilsimportto_uppercase, add, read_file print(to_uppercase("hello"))# Output: ...
import pandas as pd df = pd.DataFrame([{"email": "test@gmail.com"}]) is_upper = lambda x: x.upper() if isinstance(x, str) else x df = df.applymap(trim_strings) a = df.to_dict("records") 我得到的反应是: [{'email': 'test@gmail.com'}] 我预期的反应是: [{'email': ...
# 自定义转换为大写的函数 def to_uppercase(s): return s.upper() # 使用 map() 函数批量转换 words = ['apple', 'banana', 'cherry'] uppercase_words = list(map(to_uppercase, words)) print(uppercase_words) # 输出: ['APPLE', 'BANANA', 'CHERRY'] ``` 通过这种方式,我们可以方便地将...
The python upper function is a built-in function in Python that is used to convert all lowercase letters in a string to uppercase. It does not modify the original string; instead, it returns a new string with all the lowercase letters converted to uppercase. The upper() function is part ...
defto_uppercase(string):returnstring.upper()words=["hello","world"]result=map(to_uppercase,words)print(list(result))# 输出: ["HELLO", "WORLD"] 1. 2. 3. 4. 5. 6. 或者使用lambda表达式: words=["hello","world"]result=map(lambdax:x.upper(),words)print(list(result))# 输出: ["...
def to_uppercase(string):return string.upper()uppercased = to_uppercase("hello world")print(uppercased) # 输出:HELLO WORLD 定义一个函数来检查一个数是否为偶数: def is_even(num):return num % 2 == 0print(is_even(4)) # 输出:Trueprint(is_even(5)) # 输出:False ...
These expressions have the form [f(w) for ...] or [w.f() for ...], where f is a function that operates on a word to compute its length, or to convert it to uppercase. For now, you don’t need to understand the difference between the notations f(w) and w.f(). Instead, ...
"""This is a multiline comment to help explain what the spam() function does.""" print('Hello!') 索引和切片字符串 字符串和列表一样使用索引和切片。您可以将字符串'Hello, world!'视为一个列表,并将字符串中的每个字符视为一个具有相应索引的项。
def swapcase(self): # real signature unknown; restored from __doc__ (用于对字符串的大小写字母进行转换) """ S.swapcase() -> str Return a copy of S with uppercase characters converted to lowercase and vice versa. """ return "" 1. 2. 3. 4. 5. 6. 7. 8. #!/usr/bin/python ...
return: """ if not random_code_pool: code_pool = string.ascii_uppercase + string.digits random_code_pool = [] for i in range(num): s = '' for _ in range(length): s += random.choice(code_pool) if s and s not in random_code_pool: random_code_pool.append(s) # 写入方法。