try:# 可能引发异常的代码块except(ExceptionType1,ExceptionType2,...):# 处理异常的代码块 Python Copy 在上面的语法中,我们可以将多个异常类型放在一个括号中,通过逗号分隔。当try块引发其中任何一个异常时,程序将跳转到对应的except块,处理这个异常。 接下来我们将通过几个示例来演示如何在Python中的一行代码中...
def safe_float(obj): try: retval = float(obj) except (ValueError, TypeError): retval = 'argument must be a number or numeric string' return retval 1. 2. 3. 4. 5. 6. 异常参数 # multiple exceptions except (Exception1,..., ExceptionN)[, reason]: suite_for_Exception1_to_ExceptionN_...
>>>#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...
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...
# 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...
try: large_block_of_code #bandage of large piece of code except Exception: # same as except: pass # blind eye ignoring all errors 10.3.6 异常参数: # single exception except Exception[, reason]: suite_for_Exception_with_Argument # multiple exceptions ...
try_suite#监控此处的异常exceptException[, reason]: except_suite#异常处理代码 例子如下: try: f= open('blah','r')exceptIOError, e:print'could not open file:', e 结果是: couldnotopen file: [Errno 2] No such fileordirectory 在打开一个不存在的文件时仍然发生了 IOError .加入了探测和处理...
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}") ...
Here’s a code snippet that shows the main exceptions that you’ll want to handle when using subprocess: Python import subprocess try: subprocess.run( ["python", "timer.py", "5"], timeout=10, check=True ) except FileNotFoundError as exc: print(f"Process failed because the executable...
# multiple_exceptions.pytry:first=float(input("What is your first number? "))second=float(input("What is your second number? "))print(f"{first}divided by{second}is{first/second}")except(ValueError,ZeroDivisionError):print("There was an error") ...