Python 异常处理

目录

import sys,traceback
 
def raiseError(x):
    raise IOError("输入/输出失败")


def f():
    x = 1
    raiseError(x)
    
try:
    f()
except:
    exType,exValue,exTrace = sys.exc_info()
    print(exType)
    print(exType,exValue,sep="\n")
    traceback.print_tb(exTrace)
    for trace in traceback.extract_tb(exTrace):
        print('='*9)
        print(str(trace))
        print('='*9)

<class 'OSError'>
<class 'OSError'>
输入/输出操作失败
  File "C:\Users\Swing\Desktop\a.py", line 12, in <module>
    f()
  File "C:\Users\Swing\Desktop\a.py", line 9, in f
    raiseError(x)
  File "C:\Users\Swing\Desktop\a.py", line 4, in raiseError
    raise IOError("输入/输出操作失败")
None
=========
<FrameSummary file C:\Users\Swing\Desktop\a.py, line 12 in <module>>
=========
=========
<FrameSummary file C:\Users\Swing\Desktop\a.py, line 9 in f>
=========
=========
<FrameSummary file C:\Users\Swing\Desktop\a.py, line 4 in raiseError>
=========