try:(tab)# Some code that may raise exceptions...except (ValueError, TypeError) and "error": # Rarely used, but possible.(tab)print("Multiple exceptions occurred.")在这个例子中，"and"用于连接多个异常类型和处理代码。当抛出多个异常时，将执行print语句。需要注意的是，"and"在异常处理中的用法并...
>>>#Afunction that handles multiple exceptions>>>defdivide_six(number):...try:...formatted_number=int(number)...result=6/formatted_number...except(ValueError,ZeroDivisionError)as e:...print(f"Error {type(e)}: {e}")...>>>#Usethe function>>>divide_six("six")Error:invalid literalfori...
Note that this construct behaves differently from either multiple except clauses that catch different exceptions or an except clause that catches multiple exceptions. In those latter cases, the code will catch the first exception that occurs. With this new syntax, your code will raise all the exce...
# Program to handle multiple errors with one# except statement# Python 3deffun(a):ifa<4:# throws ZeroDivisionError for a = 3b=a/(a-3)# throws NameError if a >= 4print("Value of b = ",b)try:fun(3)fun(5)# note that braces () are necessary here for# multiple exceptionsexceptZer...
-BaseException|-KeyboardInterrupt|-SystemExit|-Exception|- (all other current built-inexceptions) 所有当前内建异常 因此,如果需要捕获所有异常,需要下面的语法: try: ...except(KeyboardInterupt, SystemExit):#user wants to quitraiseexceptException:#handle real errors 或者是...
# multiple exceptions except (Exception1,Exception2,...,ExceptionN)[, reason]: suite_for_Exception1_to_ExceptionN_wih_Argument 例:传参给内建float函数一个无效对象,引发TypeError异常: >>> try: ... float(['float() does not','like lists', 2]) ...
Exception groups, which will allow programs to raise and handle multiple exceptions at the same time Task groups, to improve how you run asynchronous code Enhanced error messages, which will help you more effectively debug your code Optimizations, promising to make Python 3.11 significantly faster th...
异步IO 是一种并发编程设计,Python3.4 开始,已经有专门的标准库 asyncio 来支持异步 IO 操作。你可能会说,我知道并发用多线程,并行用多进程,这里面的知识已经够我掌握的了,异步 IO 又是个什么鬼?本文将会回答该问题,从而使你更加牢固地掌握Python的异步 IO 操作方法。
raise ExceptionGroup("Multiple errors occurred", exceptions) 捕获ExceptionGroup 捕获ExceptionGroup与捕获其他异常类似,但是你可以处理组内的每个异常: try: operation() except ExceptionGroup as e: for exception in e.exceptions: print(f"Handling exception: {exception}") ...
try:try:raiseValueError("a")except*TypeError:...exceptValueErrorase:print(repr(e))# ValueError("a") 注意: 不能在同一 `try` 语句 中混用 `except` 和 `except*`: try:...exceptException:...except*Exception:# <- SyntaxError ... ...