原因:数字太小的原因,溢出,计算过程中出现-inf,再做其他运算,结果还是-inf。当概率很小时,取对数后结果趋于负无穷大 解决:改变浮点数的精度 参考:(51条消息) RuntimeWarning: divide by zero encountered in log错误解决_旅途中的宽~的博客-CSDN博客
上面的脚本运行时输出: >python zerodivision.py Enter first number:5 Enter second number:0 Cannot divide by zero Enter first number:10 Enter second number:2 10.0 / 2.0 is 5.0 1. 2. 3. 4. 5. 6. 7. 完整的异常处理还包括一个始终执行的部分,finally。 例如进行文件操作,无论是否发生异常我们...
class CustomException(Exception): def __init__(self, message): self.message = message def __str__(self): return self.message def divide(a, b): if b == 0: raise CustomException("除数不能为零") return a / b # 使用自定义异常 try: result = divide(10, 0) except CustomException as...
下面的代码示例演示了如何禁止打印输出警告信息: importwarningsdefdivide(a,b):withwarnings.catch_warnings():warnings.filterwarnings("ignore")returna/b result=divide(10,0)# 这里会引发警告信息print(result) 1. 2. 3. 4. 5. 6. 7. 8. 9. 在上述代码中,我们使用catch_warnings上下文管理器来临时禁止...
try: result = 10 / 0 except ZeroDivisionError: print("Cannot divide by zero.") 编写一个函数,接受一个列表和一个索引作为参数,尝试获取该索引处的元素,并处理IndexError异常。 处理IndexError: def get_element(lst, index): try: return lst[index] except IndexError: print(f"Index {index} is out...
defdivide_numbers(num1,num2):ifnum2==0:raiseZeroDivisionError("Division by zero")returnnum1/num2 result=divide_numbers(10,0)print("结果:",result) 当num2=0 时,也就是除数为 0 时,抛出异常 ZeroDivisionError。 2.3.2 捕获异常(Catch Exception) ...
result=int(row[0])/int(row[1])print(f"Result: {result}")except FileNotFoundError:print("The file 'data.csv' was not found.")except IndexError:print("Invalid data format in the CSV file.")except ZeroDivisionError:print("Cannot divide by zero.")except ValueError:print("Invalid value enco...
RuntimeWarning: divide by zero encountered in double_scalars 只有直接除以0才会被try-except捕捉到 其它异常 x,y为字典,如果x < y的不能比较,抛出TypeError异常。2.x版本是返回伪随机布尔值的。 sys.exc_type, sys.exc_value, sys.exc_traceback ...
Its a Warning") logger.error("Have you try to divide a number by zero") logger.critical("The Internet is not working...") # https://www.machinelearningplus.com/python/python-logging-guide/ while logger.hasHandlers(): logger.removeHandler(logger.handlers[0]) os.remove(r'C:\Users\kl\De...
: division by zero# During handling of the above exception, another exception occurred:# Traceback (most recent call last):# File "<ipython-input-1-3e48f10d608c>", line 6, in <module># raise ValueError("Cannot divide by zero!") from e# ValueError: Cannot divide by zero!