但是当你except 出来了Exception之后,你怎么办?直接print 吗? No!No!No! print 并不会将所有的错误路径给打印出来。 我们所需要的就是利用python的内置包的一个方法,伪代码如下: 代码语言:javascript 代码运行次数:0 importtracebacktry:...except Exceptionase:traceback.print_exc() 这样就能有效的跟踪错误了。
print('catch the exception') print('outer') ++++++++++ catch the exception Outer 执行到c = 1/0时候产生异常并抛出,由于使用了语句捕捉这个异常,所以产生异常位置后面的语句将不再执行了,转而执行对象except以外的语句。 2)捕获指定类型的异常。 try: print('++++++++++') c = 1/0 print('--...
except (OSError, TypeError, ValueError) as error: print('出错了!\n原因是:' + str(error)) # 出错了! # 原因是:unsupported operand type(s) for +: 'int' and 'str' 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 4. try - except - finally 语句 try: 检测范围 except Exception[as re...
>>>classBad(Exception):#user-defined exception...pass...>>>defdoomed(): ...raiseBad()#raise an instance...>>>try: ... doomed() ...exceptBad:#catch class name...print"got Bad"... got Bad>>> 3.5 终止行为 (Termination Actions) Finally,trystatements can say "finally"-- that is...
... except ValueError, IndexError: # Tocatchboth exceptions, right? ... pass ... Traceback (most recent call last): File"", line3, in IndexError:listindex out of range 这里的问题是except语句不接受以这种方式指定的异常列表。在Python2.x中,except Exception语句中变量e可用来把异常信息绑定到...
$ python catch_first_only.py ZeroDivisionError was raised 1 times. FileNotFoundError was raised 0 times. NameError was raised 0 times. As you can see from the output, your code falls short of the requirements. While the ZeroDivisionError exception gets raised and handled, none of your other...
print('key error') except ValueError as e: exception = e print('value error') print(exception) good() 在Py3k中运行: $ python3 foo.py 1 key error 1 $ python3 foo.py 2 value error 2 正常! (顺便提一下, 我们的Python Hiring Guide讨论了当我们把代码从Python 2 迁移到 Python 3时的其他...
尝试catch来解决它: x=5y="hello"try:z=x+yexceptTypeError:print("Error: cannot add an int and a str") 输出 Error:cannotaddanintandastr Try and Except语句-捕获异常 Try和except语句用于捕获和处理Python中的异常。可以引发异常的语句保存在try子句中,处理异常的语句写在except子句中。
print "catch exception!" ... raise! ! ! ! ! # 原样抛出异常,不会修改 traceback 信息. >>> test() catch exception! Traceback (most recent call last): raise Exception("error!") Exception: error! 如果需要,可⽤用 sys.exc_info() 获取调⽤用堆栈上的最后异常信息. >>> def test(): ...
- Exception handling: Catch UnicodeEncodeError and handle the encoding issue. section Example Python code snippet demonstrating how to handle encoding exceptions: ```python content = "你好,世界!" try: print(content) except UnicodeEncodeError: