Built-in ExceptionsThe table below shows built-in exceptions that are usually raised in Python:ExceptionDescription ArithmeticError Raised when an error occurs in numeric calculations AssertionError Raised when
Figure 20.4:Built-in exceptions The classBaseException is the base class of all the built-in exception classes. FromBaseException, four classes namedException,SystemExit,KeyboardInterrupt andGeneratorExit are derived. All the remaining built-in exception classes are derived directly or indirectly from th...
python 内置错误类型 Built-in Exceptions 1BaseException2+-- SystemExit3+-- KeyboardInterrupt4+-- GeneratorExit5+-- Exception6+-- StopIteration7+-- ArithmeticError8| +-- FloatingPointError9| +-- OverflowError10| +-- ZeroDivisionError11+-- AssertionError12+-- AttributeError13+-- BufferError14+-...
Exception hierarchy¶ The class hierarchy for built-in exceptions is: BaseException +-- SystemExit +-- KeyboardInterrupt +-- GeneratorExit +-- Exception +-- StopIteration +-- StopAsyncIteration +-- ArithmeticError | +-- FloatingPointError | +-- OverflowError | +-- ZeroDivisionE...
官网教程链接:8. Errors and Exceptions 错误是由语法不正确产生的; 异常是没有语法错误的情况下,执行期间产生的。 Built-in Exceptions列出的内建的异常及其含义。 异常捕获语句: try:# do somethingexceptValueError:# handle ValueError exceptionexcept(IndexError,ZeroDivisionError):# handle multiple exceptions# Ind...
python标准库内置了大量的函数和类,是python解释器里的核心功能之一。该标准库在python安装时候就已经存在。 python内置对象 内置函数:Built-in Functions 如print() 内置常量:Built-in Constants 如false 内置类型:Built-in Types 内置异常:Built-in Exceptions ...
官网地址:Built-in Exceptions — Python 3.11.3 documentation 3、异常处理 3.1 try...except...语句 语法格式: try: "代码块" except ExceptionName: "捕获指定类型的异常,执行此代码块" except Exception: "捕获异常,执行此代码块" 1. 2. 3.
Python 基本built-in类型主要有numerics,sequences, mapping, files, classes, instances, exceptions,类型上都会存在的操作有比较、是否为真、转换为字符串toString,Python中使用str/repr(object)可转换为字符串, print(object)时会隐式调用str()。 numerics: ...
Python 语言将常见的异常列为内置类型,表中列举了几种常见的内置异常,更多内容推荐参阅官方文档(https://docs.python.org/3/library/exceptions.html#built-in-exceptions)。 默认情况下,在程序运行到某处代码出现异常时,将会抛出异常并且立即退出程序。 如果想让程序遇到异常时,能够继续运行而不退出,就需要对异常进行...
Raising Exceptions 1. 抛出内置异常 1. Raising Built-in Exceptions 2. 自定义异常 2. Custom Exceptions 异常处理最佳实践 Exception Handling Best Practices 1. 具体异常优先 先捕获具体异常，再捕获通用异常 Catch specific exceptions before general ones 2. 避免空except块 3. 异常信息丰富 4. 日志记录异常 ...