Below is a sequence diagram illustrating the process of handling errors in Python: ProgramUserProgramUserRun programError occursPrint error message Conclusion In this article, we have discussed the different types of errors you may encounter in Python and how to print and handle them effectively. By...
importthreading# 导入线程模块importsys# 导入系统模块importtraceback# 导入追踪模块,用于获取异常信息defthread_function():print("子线程开始工作...")# 故意除以零来引发异常result=1/0defthread_function_with_error_handling():try:thread_function()exceptExceptionase:# 打印错误信息到控制台print(f"发生异常:...
print('Handling run-time error:',err) Handling run-timeerror:intdivisionormodulo by zero try-finally 语句 try-finally 语句无论是否发生异常都将执行最后的代码。 以下实例中 finally 语句无论异常是否发生都会执行: 实例 try: runoob() exceptAssertionErroraserror: print(error) else: try: withopen('fi...
print('Handling run-time error:', err) Handling run-time error: int division or modulo by zero try-finally 语句 try-finally 语句无论是否发生异常都将执行最后的代码。 以下实例中 finally 语句无论异常是否发生都会执行: 实例 try: runoob() except AssertionError as error: print(error) else: try:...
>>>defthis_fails():...x=1/0...>>>try:...this_fails()...exceptZeroDivisionErroraserr:...print('Handling run-time error:',err)...Handling run-time error: division by zero 8.4. Raising Exceptions Theraisestatement allows the programmer to force a specified exception to occur. For exampl...
# error handling finally: # optional, clean up try: 这里开始进入抓去异常的范围。 # do something: 运行你写的代码。 except...: 到这里异常抓取范围结束,在这个范围内如果发生指定的异常事件,就会被“抓住”处理。 Exception as error: 这里指定的异常事件是 Exception 类,抓住了之后给其定义一个变量叫 er...
print(e.args[0]) traceback In larger, more complex scripts, it can be difficult to determine the precise location of an error.Python'ssysandtracebackmodules can be used together to isolate the exact location and cause of the error, identifying the cause of an error more accurately and savin...
print("OS error: {0}".format(err)) exceptValueError: print("Could not convert data to an integer.") except: print("Unexpected error:",sys.exc_info()[0]) raise --- OSError 异常类型:操作系统错误 ValueError 异常类型:传入无效参数 ===执行结果如下:=== OS error: [Errno...
try:# 可能会出现异常的代码num1=10num2=0result=num1/num2print(result)exceptZeroDivisionError:# 处理 ZeroDivisionError 异常print("除数不能为零") 在上述示例中,我们尝试计算num1 / num2,由于num2的值为零,会引发一个ZeroDivisionError异常。在except ZeroDivisionError块中,我们捕获并处理这个异常,并打印出相应...
except NameError: print("抛出了一个NameError") raise # 重新抛出 9.6 异常链(Exception Chaining) 异常链指的是当一个except块中再次抛出了新的异常,那么 Python 会在堆栈追溯信息里把这两个异常都显示出来。例如: try: open("database.sqlite")