def get_percentage_difference(num_a, num_b): # 👇️ use abs() function to always get positive number return (abs(num_a - num_b) / num_b) * 100 print(get_percentage_difference(50, 30)) # 👉️ 66.6666... print(get_percentage_difference(50, 100)) # 👉️ 50.0 1. 2. ...
# 导入内置模块import mathprint(math.sin(math.pi / 2))# 导入自定义模块from mymodule import myfuncmyfunc()# 导入第三方库import numpy as npa = np.array([1, 2, 3])print(a)# 使用 pip 安装第三方库# pip install requestsimport requestsresponse = requests.get("https://www.example.com")prin...
return语句可用于提前结束函数的执行，通常与条件语句结合使用。def is_even(number):if number % 2 == 0:return True return False # 无需else语句，因为前面已经return了 3. 返回多个值 函数可以返回多个值，这些值将打包成一个元组。pythonCopy codedef get_name_and_age(): name = "Alice" age ...
Int, or integer, is a whole number, positive or negative, without decimals, of unlimited length. Example Integers: x =1 y =35656222554887711 z =-3255522 print(type(x)) print(type(y)) print(type(z)) Try it Yourself » Float
if number > 0:return True else:return False print("This line is not executed.")result = is_positive(5)print(result) # 输出 True ```在上面的例子中，如果 `number` 大于 0，函数将立即返回 `True`，后续的 `print` 语句不会执行。`return` 是 Python 中非常重要的语句，它允许函数提供计算结果...
# code#2 class PositiveNumber(object): def __init__(self, name, value): self.name = name self._value = value def __get__(self, obj, dtype): print("call `__get__` method") print("obj : {}".format(obj)) print("dtype: {}".format(dtype)) return self._value def __set_...
negative_num = PositiveNumber(-5) # 抛出ValueError异常 通过精心设计和合理使用dataclass ,不仅能提升代码的可读性和可维护性,还能在保证性能的前提下,更好地遵循软件工程的最佳实践。 第7章 总结 Dataclasses作为Python标准库的一员,凭借其简洁的语法和对类型提示的深度整合,已悄然改变现代Python编程的格局。它们...
def check_number(number): if number > 0: return "Positive" elif number == 0: return "Zero" return "Negative" print(check_number(1)) # Positive ▍38、使用sorted()检查2个字符串是否为相同 def check_if_anagram(first_word, second_word): first_word = first_word.lower() second_word = ...
python LogisticRegression 设置正例样本positive取值 python正态检验,统计学,风控建模经常遇到正态分布检验。正态分布检验在金融信贷风控建模中常用于变量校验,让模型具有统计学意义。正态分布检验在生物医药领域也有广泛应用。很多NCBI,Science,Nature等知名平台发布
deflongest_strike_above_mean(x):ifnotisinstance(x, (np.ndarray, pd.Series)):x = np.asarray(x)returnnp.max(_get_length_sequences_where(x > np.mean(x)))ifx.size >0else0 defcount_above_mean(x):m = np.mean(x)returnnp.where(x > ...